Oct
12
2024

Cardiovascular Risk Markers Predict Heart Attacks and Strokes

An article in The New England Journal of Medicine stated that cardiovascular risk markers predict heart attacks and strokes. A summary of this study was also published by NBC News.

30-year follow-up of the Women’s Health Study

This is based on a 30-year follow-up study of the Women’s Health Study. In the beginning of the study all women had blood tests taken. In the beginning none of the women had cardiovascular disease.  The blood tests were LDL cholesterol, lipoprotein(a) and high-sensitivity C-reactive protein (CRP). When either of these markers was high at the beginning of the clinical trial, it turns out that 30 years later the person either was dead from cardiovascular disease or had a heart attack or stroke.

More details of the study

In the beginning of the study 27,939 initially healthy U.S. women had 3 of the mentioned blood tests taken. If only one of them was elevated, there was a risk in the next 30 years to get a myocardial infarction, coronary revascularization, stroke, or death from cardiovascular causes. The initial age of the patients was 54.7 years. During the next 30 years of follow-up 3662 cardiovascular events took place. Hazard ratios for the primary end point in a comparison of the top with the bottom quintile were calculated. The following hazard ratios were derived:

  • 70-fold for high-sensitivity CRP
  • 36 for LDL cholesterol
  • 33 for lipoprotein(a)

Each biomarker showed an independent contribution to the overall risk. The risk of developing cardiovascular disease was highest when all three biomarkers were elevated.

Traditional risk calculation

Cardiologists calculated risk for cardiovascular events by the traditional 10-year estimates of risk. The authors suggest that physicians should do screening blood tests with these three biomarkers. If any of the biomarkers is elevated, measures to reduce cardiovascular risk should be initiated. This will be very effective to prevent cardiovascular events for the next 30 years.

Be proactive, prevent heart disease

As we get older, many people develop elevations of high-sensitivity CRP, LDL cholesterol and lipoprotein (a). But don’t wait for this to happen. Here are 9 steps you  can follow to prevent it.

  • Maintain a healthy weight
  • Quit smoking
  • Choose good nutrition
  • Be physically active
  • Treat hypertension adequately
  • Manage diabetes, if you have it
  • Stress management
  • Limit alcohol intake
  • Get enough sleep

Comments to the steps you can take to prevent cardiovascular disease

The ideal body mass index is between 21.0 and 22.0. I found that the fasting mimicking diet helps me to stay in that BMI range. Good nutrition eliminates red meat and emphasizes vegetables and salads. Fish, lean chicken and turkey meat are healthy. Avoid all processed meats like sausages. Watch your calorie intake to keep your body mass index stable. In addition, avoid excessive salt and sugar intake. Avoid highly processed carbohydrates and processed food. Eliminate fried fast food, chips and baked goods from your diet as they contain trans fats. Trans fats cause hardening of the arteries.

Aim to get 30 to 60 minutes of daily activity. Do two or more strength training sessions a week. This raises the protective HDL cholesterol and prevents cardiovascular disease. Excessive alcohol intake leads to cardiovascular disease and high blood pressure. Limit your alcohol intake, if you find it hard to eliminate it altogether.

Cardiovascular Risk Markers Predict Heart Attacks and Strokes

Cardiovascular Risk Markers Predict Heart Attacks and Strokes

Conclusion

A unique 30-year follow-up study of the Women’s Health Study identified three risk factors that a doctor can be determin from a blood sample. They predict whether a person will develop cardiovascular disease 30 years down the road. The three risk factors are high-sensitivity CRP, LDL cholesterol and lipoprotein (a). The best approach to prevention of heart disease is to adopt the approach of the Mayo Clinic described above. It comes down to the basics of good nutrition, regular exercise, maintaining a healthy weight, limiting excessive alcohol intake and stress management.

Aug
17
2024

Exercise for healthy Aging and a young Brain

This article is about exercise for healthy aging and a young brain. A review article in Medical News Today states that several research papers showed that exercise greatly improves brain health, cognition and mood. It also reduces the risk of neurodegenerative diseases.

The benefits of regular exercise 

Here is a list of the beneficial effects of regular exercise:

  • Increased muscle strength
  • Improved heart health
  • Lower blood sugar
  • Improved mood
  • Alleviates stress
  • Improvement of cognitive function

Researchers from Stanford Medicine have examined in a rat model how exactly exercise influences various tissues. Unfortunately, such experiments in humans are not possible and results of rat experiments do not readily translate into the human context. In 8 weeks of regular exercise rats experienced stimulation of the immune system, a reduction of the stress response, an increase of energy production and stimulation of the metabolism. From indirect measurements we know that in humans the same findings likely also hold true. The mitochondria, the area in cells where energy production occurs, are stimulated in muscles, the heart, liver, kidneys, and white adipose tissue.

Effect of exercise on the immune system

Researchers showed in a mouse model that exercise stimulated the T cell response and rejuvenated aging microglia in the brain. The result is a strengthening of the immune system and rejuvenation of the supportive microglia. In the aging human regular exercise rejuvenates microglia in the hippocampus. This can prevent dementia and Alzheimer’s disease.

Exercise strengthens brain cell connections

How does exercise affect the functioning of the brain?

Ryan Glatt is a senior brain health coach and director of the FitBrain Program at Pacific Neuroscience Institute in Santa Monica. He said: “Exercise enhances synaptic plasticity and blood flow while reducing inflammation and increasing the expression of neurotrophic factors like Brain-derived neurotrophic factor (BDNF). These effects can synergistically improve memory, learning, and overall brain health.”

The best forms of exercise for brain health

Glatt said: “Activities combining physical and cognitive challenges, like dance or tai chi, can be especially effective for certain aspects of brain health.”

Brisk walking is a simple method of exercise. However, we also need isometric exercises, which helps muscle strength and endurance. A good way of combining the two forms of exercise is to regularly go to a gym. Use a treadmill for 30 minutes and then use 30 minutes of a workout with 10 weight machines. Mix this with tai chi or ballroom dancing several days per week. This keeps you mentally and physically fit.

Slow your biological age through the use of the “Essential 8”

Research identified 8 factors that determine how long you live. These 8 factors are what can lower your biological age by 6 years. Here are the 8 factors:

  • Diet

    A diet high in fruit, vegetables and lean meats helps you to lower your cholesterol level. In addition, avoid trans fats, fried foods and sugary foods. This helps you to lose weight and prevents Together with regular exercise eating a healthy diet prevents heart attacks and strokes.

  • Activity

    The American Heart Association recommends 150 minutes of moderate-intensity aerobic activity per week. Alternatively, 75 minutes of vigorous aerobic activity achieve the same thing. Examples of moderate aerobic activity are a brisk walk, jogging, biking, social dancing and water aerobics. Vigorous aerobic activity involves spinning, running, swimming laps or jumping rope. Exercise reduces blood pressure, blood sugar, and cholesterol. It also helps people to reduce weight.

  • Quit smoking

    Smoking cigarettes, vaping or using e-cigarettes causes your  body to develop higher blood pressure and damages your blood vessels because of circulating toxins. You also develop shortness of breath from narrowed airways. On the other hand, when people quit smoking, their risk of coronary heart disease drops to half after 1 year.   

  • Getting enough sleep

    People who don’t get enough sleep at night tend to have higher blood pressures, higher cholesterol and higher blood sugar values. This leads to weight increase and obesity. Sleeping at night for 7 to 9 hours improves cardiovascular health.

  • Body mass index (BMI) 

    An elevation of your body weight occurs when you eat the wrong foods and combine this with a sedentary lifestyle. Increased weight causes heart and joint problems as well as diabetes. Eating the right foods and exercising regularly gets your BMI into the normal range. This reduces your biological age.

  • Cholesterol

    An increase of cholesterol can cause heart attacks and strokes. But when you watch your fat and cholesterol intake you can reduce your cholesterol level. Make healthier choices with foods like reducing saturated fats, reducing refined carbohydrate intake, eating more vegetables and leaner meats. This reduces inflammation in the arteries and plaque deposits with much lower risks of heart attacks and strokes.

  • Blood sugar

    Increased blood sugars lead to diabetes. In this case there is accelerated hardening of the arteries in the heart, brain, eyes, and kidneys. This leads to premature heart attacks and strokes. People need to avoid eating refined sugars, carbohydrates (bread, pasta, rice) and sugary drinks. This normalizes blood sugars and your biological age reduces. Regular exercise is also important to burn off any excess sugar in the system.

  • High blood pressure

    An elevated blood pressure strains the arteries and the heart. If you don’t pay attention to this you are at a high risk of getting heart failure, a heart attack or a stroke. Sticking to a heart healthy diet, avoiding salty foods, and exercising regularly allows you to lower your blood pressure and avoid the above mentioned complications. If these measures alone do not reduce your blood pressure to normal, ask your doctor to prescribe blood pressure lowering medications for you.

  • Bioidentical hormone replacement

    What was not contained in the 8 factors was bioidentical hormone replacement. As you can see from the illustration, testosterone in males reduces more slowly in males (with a delay of 10 years) in comparison to estrogen reduction in menopausal women. Several authors describe that men and women in andropause and menopause live longer when bioidentical hormones are administered compared to those that do not use hormone replacement therapy.

Exercise for healthy Aging and a young Brain

Exercise for healthy Aging and a young Brain

Conclusion

Regular exercise even in older age keeps your brain free from dementia or Alzheimer’s disease. But in addition to this other research showed that 7 more factors are important to reduce your biological age. They are a healthy diet, quitting smoking, getting enough sleep and reducing your body mass index. In addition, you need to keep your cholesterol and blood sugar levels normal. Control high blood pressure with a healthy diet, refrain from salty foods and if necessary, treat it with medication.

Life’s essential 8 factors

It is important to simultaneously control all these “Life’s essential 8” factors for optimal control. People who do this were found to consistently have a lower biological age than others who do not. They also tend to not get Alzheimer’s disease whereas controls do. Lifestyle factors matter for healthy aging and a young brain. Studies showed that the biological age of those who take care of their lifestyles is on average 6 years younger than that of controls. You can reduce your biological age even further with bioidentical hormone replacement in andropause and menopause.

Jun
22
2024

Metabolism Can Vary in People

Weight loss is easier for some than others, because metabolism can vary in people. In the following I will outline this in more detail. A biochemist recently published an article in “the conversation”, which is the basis for my review.

Everybody has their own metabolism

It is important to realize that everything that our body comes in contact with influences our physical characteristics like our blood pressure and our energy. Together all the biological characteristics have the name phenotype. The most important factor that influences our phenotype is our metabolism. It matters what you do like eating, whether you are taking medication, smoking, or exercising. This all influences your metabolism. On a molecular level it starts when your digestive system breaks nutrients down into each component: carbohydrates, fats and protein. When your digestive juices break down these food components, electrons are released from chemical bonds. These are transferred to the mitochondria, the energy packages in all of our cells. It is important to note that we do not all have the same metabolism as our neighbour. There are different types of metabolism.

Metabolism of an elite athlete

Elite athletes are not born that way. They have to practice hard physically for many hours a day and do that over several years. Their bodies adapt to the regular training by creating extra mitochondria in every cell of their body. Their body also learns how to burn fat, carbs and amino acids into chemical energy effectively. The elite athlete has superior energy production.

Metabolism of a Covid-19 patient

At the other end of the spectrum is the metabolism of a Covid-19 patient. Researchers found by examining patients who got sick from Covid-19 that their fat metabolism was impaired. This inability to burn fat persists in long Covid patients. The fatigue from long Covid is due to a dysfunction of the mitochondria. The mitochondria are not producing enough energy.

The in-between metabolism of blood donors

Travis Nemkov is an assistant research professor at the University of Colorado Anschutz Medical Campus. His team investigated blood from 13,000 blood donors. They found that the metabolism of blood donors placed between the metabolism of elite athletes and that of Covid-19 patients. They also found a lot of variation of a metabolite by the name of kynurenine, which is due to a breakdown of the amino acid tryptophan. The researchers found that blood from donors with higher kynurenine levels was unable to restore blood levels of blood recipients. In addition, they found that kynurenine levels were higher in older donors and also in patients with obesity (higher BMI’s). Kynurenine was also a strong predictor for Covid-19 severity.

Weight loss problems when the metabolism is slow

We all know people who have a problem shedding their weight compared to others who loose weight with only a few days of food restriction. “People might have fast, slow, or average metabolism, regardless of their body size and composition,” says Dr. Chih-Hao Lee, professor of genetics and complex diseases at Harvard’s T.H. Chan School of Public Health. This Harvard University website explains this in detail. How do we speed up a naturally slow metabolism?  We can exercise a bit more, and watch the quality of our food intake. This means cutting out added sugar, too much fat, too many carbohydrates and processed foods. The Harvard website says: “Studies have found green tea contains a compound called epigallocatechin gallate, which may increase the calories and fat you burn. “By making these small changes mentioned you can rev up your metabolism.

Hormones and body weight

Our metabolism and body weight depend on a number of hormones: leptin, insulin, estrogens, androgens and growth hormone play a crucial role in weight control. Additional hormones, such as the thyroid hormones are involved in maintaining our weight in a healthy range. Researchers have noticed that patients with hypothyroidism gain weight and burn less calories in their mitochondria. On the other hand, patients with hyperthyroidism stimulate their metabolism, lose weight and burn more calories. The exact mechanism of how thyroid hormones interact with the other hormones is unknown.

Metabolism Can Vary in People

Metabolism Can Vary in People

Conclusion

I came across a review about metabolism and weight control, written by a biochemist. He pointed out that different people have different metabolisms. Examples he gave were the metabolism of elite athletes and the metabolism of Covid-19 patients, who are at the low end. His team investigated the metabolism of 13,000 people who were blood donors. He called them people with an in-between metabolism.

How to speed up naturally slow metabolism

How do we speed up a naturally slow metabolism?  We can exercise a bit more, and watch the quality of our food intake. This means cutting out added sugar, too much fat, too many carbohydrates and processed foods. Your physician can also tell you whether your thyroid hormones and your human growth hormone are adequate. Other hormones that regulate your metabolism are leptin, insulin, estrogens and androgens. When you look at the factors that are responsible for your metabolism, the genetic factors come first. Your hormone status, eating pattern and exercise status come second. But by making small changes to the factors mentioned you can rev up your metabolism significantly.

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Jun
10
2024

About Aging and a Prolonged Life

The topic “about aging and a prolonged life” is always popular with people. CNN recently discussed this topic with the Nobel prize winner and molecular biologist, Professor Venki Ramakrishnan. He shared the 2009 Nobel Prize in Chemistry with Thomas A. Steitz and Ada Yonath for research on the structure and function of ribosomes. Ribosomes are sub particles in the cell responsible for making proteins. In the following I will summarize this interview.

What is aging?

150 years ago, people lived only about to 40 years. Today we can live up to 84 years in most countries. It is because medicine has learnt a lot about the reasons why diseases occur and how they can be cured. Physicians have a number of antibiotics available for those who suffer infections. Heart bypass surgeries and stents can prolong a person’s life when there is hardening of the coronary arteries.

Aging processes

The following aging processes occur all our lives:

  • DNA breaks happen in our cells, but repair mechanisms are in place that deal with this. With older age repair mechanisms are more sluggish.
  • Faulty proteins form inside cells, however, we have mechanisms to take care of that.
  • Chemical damage to molecules in our cells accumulates. The cells can only partially eliminate these.
  • Hormone disbalances occur during menopause and andropause. But anti-aging physicians can correct this by doing hormone tests and ordering bioidentical hormone supplements.
  • There are limits of what anti-aging medicine can do: osteoarthritis affects our joints; our muscles are aging and with it our heart muscle. Degenerative neurological diseases like multiple sclerosis, Parkinson’s disease and dementia occur frequently as we get older with no effective therapies.
  • The immune system weakens with age. To a certain extend vitamin D3 and other supplements can strengthen it, but only to a certain extent.

Systems working together in our body

Dr. Ramakrishnan said that our bodies work like cities. In it are various systems that need to work together to keep us alive. If a major system fails, we die. Some of the essential organ systems are the heart, the brain, kidneys, our gut, the lungs, the bone marrow and all our hormone glands. If one of these organs breaks down, we are in trouble. If an organ donor is not available, we perish. But even when everything is working together well, we are limited reaching a maximal lifespan of about 120 years. This has to do with limits of our cell metabolism and the aging processes mentioned above. Science has not found a way to prolong our maximal lifespan and likely will not find one soon. But there are various lifestyles that can prolong life as I mentioned here before.

Genetic effect on our lifespan

CNN asked Dr. Ramakrishnan what genetic effects there are that would transmit longevity from a parent who lived until 95 or older to a child’s lifespan. He answered the following:There is a correlation between the ages of parents and their children, but it’s not perfect. A study of 2,700 Danish twins showed that heritability — how much of our longevity is due to our genes — only accounted for about 25% of lifespan. Still, researchers have found that mutation in just a single gene can double the lifespan of a certain type of worm. Clearly there’s a genetic component, but the effects and implications are complex.”

Relationship between cancer and aging

The same genes are involved for the growth of the body at a young age, and the older person who comes down with cancer. In old age the same genes can cause cancer and dementia. Dr. Ramakrishnan said: “Our risk of cancer increases with age because we accumulate defects in our DNA and genome, which sometimes cause gene malfunctions that lead to cancer. But many of our cellular repair systems that seem to be designed to avoid cancer early in life also cause aging later.”

Apoptosis (programmed cell death) and senescent cells

The body has two mechanisms in place that counter the danger of developing cancer cells. Dr. Ramakrishnan explained: “For example, cells can sense breaks in our DNA that might allow chromosomes to join in an abnormal way, which could lead to cancer. To prevent that joining, a cell will either kill itself or enter a state called senescence, where it can no longer divide. From the perspective of an organism like us, which has trillions of cells, this makes sense. Even if millions of cells are destroyed this way, these actions protect the whole organism. But the buildup of senescent cells is one of the ways we age.”

Lifestyle changes that help you live longer

Dr. Ramakrishnan said that our grandmothers knew what a healthy lifestyle was. The following is a list of what science now confirms adds years to your life:

  • Don’t be gluttonous. Eating a variety of healthy foods in moderation can prevent the health risks of obesity.
  • Get exercise: this helps us regenerate new mitochondria, which are the powerhouses of our cells providing energy.
  • Avoid stress, which creates hormonal effects that change our metabolism and can accelerate aging.
More life prolonging points:
  • Get enough sleep. This allows our bodies to do molecular-level repair.
  • One of the newer findings is Dr. Longo’s fasting mimicking diet. Do a semi-fast once a month for 5 days with 500 to 600 calories per day. This helps you to shed 0.5 to 0.7 units of body mass index. It also stimulates your immune cells, your stem cells and elongates your telomeres. Long telomeres make you live longer.
  • Replacing missing hormones with the help of an anti-aging physician will add about 10 years to your life. I mentioned this earlier.

A few more points about longevity research

Dr. Ramakrishnan said: “Already the top 10% of income earners in both the US and the UK live more than a decade longer than the bottom 10%. If you look at health span — the number of years of healthy life — that disparity is even greater. Poorer people are living shorter, less healthy lives.” He said further about the concept of “immortality”: “I think this quest for immortality is a mirage. One hundred and fifty years ago, you could expect to live until about 40. Today, life expectancy is about 80, which, as author Steven Johnson has said, is almost like adding a whole extra life. But we’re still obsessed about dying. I think if we lived to be 150, we’d be fretting about why we’re not living to 200 or 300. It’s never-ending.”

About Aging and a Prolonged Life

About Aging and a Prolonged Life

Conclusion

CNN discussed the quest for longevity with Nobel prize winning Dr. Ramakrishnan. He pointed out that the aging process is due to a number of factors that work together. There are DNA breaks, faulty proteins, chemical damage to molecules, hormone disbalances and degenerative changes. We need to watch that we do not overeat, get regular exercise and eat a variety of healthy foods. In addition, we need to avoid stress, get enough sleep and replace missing hormones with bioidentical hormones. A newer boost to your health is the fasting-mimicking diet (FMD) from Dr. Valter Longo that helps you keep your weight in the lower body mass index range. Dr. Longo showed in animal experiments and with humans that the FMD elongates telomeres, which directly prolongs life.

Apply what helps your longevity

While it is far-fetched to believe that we now have a ticket to live for 120 years or longer, it is more important to know that we can do our part to spend our golden years in health and wellness.

Dec
23
2023

Any Form of Exercise is good

Here are a few items that can prolong life; among them any form of exercise is good. This article concentrates on the exercise part in relation to longevity. A recent publication described how regular exercise prolongs your long-term survival. According to a study released on occasion of the American Heart Association’s Scientific Session 2023 there are 8 major factors that prolong life: healthy diet, physical activity, nicotine exposure, sleep health, BMI, cholesterol, blood sugar, and blood pressure.  Among this group of factors regular physical activity plays a major role to prolong your life. Researcher who studied various people found that those who neglected their physical health had a chronological age of 53, but their average biological age was 57. On the other hand, a group of fit people who engaged in regular physical exercise had a chronological age of 41 years, but a biological age of 36.

Clinical trials showing that any form of exercise is good

JAMA Internal Medicine study by Dr. del Pozo Cruz 

This study examined what the optimal amount of physical activity per week is to reduce mortality compared to an inactive population. 500,705 eligible US adults were observed for about 10 years. The abbreviations that the authors used in the study were as follows:

MPA: moderate aerobic physical activity

VPA: vigorous aerobic physical activity

MSA: muscle-strengthening activity

Results of mortality reduction with various amounts of physical activity

  • The best group engaged in more than 0 to 75 minutes of MPA combined with more than 150 minutes of VPA and 2 or more MSA sessions per week. Their mortality rate was 50% lower than an inactive comparison group.
  • The optimal combination for reduction of cardiovascular disease (CVD) and cancer mortality risk was as follows: more than 150 to 225 minutes of MPA, more than 0 to 75 minutes of VPA, and 2 or more MSA sessions per week. This reduced combined mortality of CVD and cancer by 70%.
  • The researchers stated that the adjusted mortality rates represented 50% lower mortality rate for all-cause and cancer mortality. The mortality rate for CVD mortality was 3-fold lower than for inactive controls.

Smallest amount of exercise that reduces mortality

In a study published in the European Heart Journal the authors asked how little exercise per week was enough to reduce mortality from heart disease. They found that it takes at least 15–20 min/week of vigorous physical activity (VPA) to reduce mortality from heart attacks by 16–40%. If you increased the exercise level by 50–57 min/week the mortality rates reduced even further.

Are physically active jobs healthy?

Recent research showed that people who work in physically demanding jobs are more likely to develop early cognitive impairment. This is the pre-stage of Alzheimer’s disease. 15.5 % of people who worked in high levels of occupational physical activity developed dementia. This compared to 9% risk for people whose work involved a low level of physical activity, not too much and not too little. The finding confirms the notion that there is a need for balance of physical exercise. Several publications stressed what is optimal in terms of exercise: vigorous (75 to 300 minutes per week) and moderate physical activity (150 to 600 minutes per week). People who expose themselves to these amounts of exercise live the longest and stay healthy.

Discussion

The studies discussed here showed that the right amount of exercise can reduce mortality from heart disease and cancer. However, exercise is not the only factor that can do this. It is important to combine regular exercise with a healthy diet. Your diet should consist of fruits and vegetables, whole grains, low-fat dairy products, lean proteins and limit saturated and trans-fat, added sugars, and sodium. In addition, you need enough sleep, maintain a healthy weight, manage your stress, and don’t smoke.

Any Form of Exercise is good

Any Form of Exercise is good

Conclusion

In this review I touched on the importance of regular exercise to reduce mortality from heart disease and cancer. Vigorous (75 to 300 minutes per week) and moderate physical activity (150 to 600 minutes per week) reduce mortality from heart attacks by 16% to 40%. But physical exercise is only one factor of mortality reduction. If you want the full benefit from other factors, you must quit smoking, eat a Mediterranean type diet with fruits and vegetables, whole grains, low-fat dairy products and lean proteins. Also you should limit saturated and trans-fat, added sugars, and sodium. In addition, you need enough sleep, maintain a healthy weight and manage your stress. Once you adopted this lifestyle, you live longer and you will get less diseases.

Sep
09
2023

How the Immune System affects Parkinson’s Disease

This article explains how the immune system affects Parkinson’s disease (PD). Notably, in the past physicians thought that Parkinson’s disease was due to a degenerative change of the substantia nigra. This explained why balancing was a problem, why shaking of the hands occurred and why falls happened often. It it important to realize that nobody thought about the immune system.  And no-one knew that an autoimmune process could be behind Parkinson’s disease.

T cells that react to a damaged protein called alpha-synuclein

There are specific changes in the immune system approximately 10 years before Parkinson’s disease symptoms occur in patients who come down with the disease. Researchers from the La Jolla Institute for Immunology showed that T cells play a key role in causing PD. They react to a damaged protein called alpha-synuclein build up in the dopamine-producing brain cells. Laboratory physicians can assay this through a simple blood test, which becomes a screening tool for early Parkinson’s disease. The reactive T cells stay around for about 10 years, then fade away. There seem to be other immune factors that weaken the initial aggressive phase of the T cells.

The role of inflammation in Parkinson’s

When the immune system malfunctions chronic inflammation can develop. In farmers exposed to pesticides the later development of Parkinson’s disease was observed. The researchers thought that the pesticides caused an irritation of the immune system leading to chronic inflammation. There is evidence that the gut bacteria are different in Parkinson’s disease patients when compared to normal controls. The gut absorbs the metabolites of the abnormal gut bacteria and causes chronic inflammation. In an attempt to stop the inflammatory process, the immune system can develop autoimmune antibodies, which can cross react with cells of the substantia nigra. This in turn can cause Parkinson’s disease.

Lifestyle factors that people can change to prevent PD

Dr. Rebecca Gilbert, vice-president and chief scientific officer for the American Parkinson Disease Association (APDA) commented on the importance of lifestyle changes. She said: “It makes intuitive sense that instituting lifestyle modifications that potentially decrease inflammation may decrease the risk of Parkinson’s disease. Exercise, for example, has been shown to reduce inflammation and is probably one of the many reasons that exercise reduces the risk of Parkinson’s disease and also improves established Parkinson’s disease.” She commented further: “Also, we should avoid things like excessive alcohol and nicotine that we know have negative effects on the immune system,” she added. “And managing our stress as best as possible can slow and help maximize outcomes of many diseases.”

Changing diet can help postpone Parkinson’s disease

With regard to the best diet that will help Parkinson’s disease patients she said: “The MIND diet emphasizes whole grains, vegetables, nuts, legumes, and berries. Fish is the preferred protein and olive oil is the preferred fat. Recently a study showed that adherence to the MIND diet and the Mediterranean diet had an association with later onset of Parkinson’s disease.”

The gut connection to Parkinson’s disease

According to the WHO the global prevalence of Parkinson’s disease has doubled in the last 25 years. At this point we do not know why this is so. But many investigations have shown that there is a significant difference in the gut bacteria composition of healthy controls and Parkinson’s disease patients. There is a 30% difference between the bacterial composition of healthy controls and patients with Parkinson’s disease. This has led to Braak’s Hypothesis of Parkinson’s Disease. This hypothesis says that an unknown pathogen enters through the nose, the person swallows it and it ends up in the gut. Absorption gets it into the gut wall and it migrates through the vagus nerve into the central nervous system where it leads to accumulation off alpha-synuclein in the substantia nigra. This destroys the dopamine producing cells in that region causing the symptoms of PD.

Can any diet fight gut dysbiosis?

  • In 2022 study they found that flavonoids, the pigments of fruit were associated with a lower mortality of patients with Parkinson’s disease.
  • In an earlier study of 2018 researchers determined that a protein from fish with the name parvalbumin helped Parkinson’s patients to stop producing alpha-synuclein. PD patients suffer from clumping of alpha-synuclein, which causes their symptoms.
  • Restriction of refined carbohydrates “especially diets with a low glycemic index, rich of vitamins and polyphenols, a Mediterranean diet for example, can be recommended”.

Regular exercise to prevent Parkinson’s disease

Regular physical exercise maintains body function and muscle strength. Dr. Emer MacSweeney said: “Being physically active is one of the best things you can do for your body. Exercise helps protect against many diseases and keeps the heart, muscles, bones, and brain in optimum condition. Exercise promotes the oxygenation of the brain and stimulation of multiple neurochemicals.”

Several studies showed that patients with PD deteriorate slower, if they exercise regularly. Part of that response is due to the release of endorphins and serotonin, but we do not know all of the positive mechanisms of exercise at this time.

How the Immune System affects Parkinson’s Disease

How the Immune System affects Parkinson’s Disease

Conclusion

Recent research changed what we know about Parkinson’s disease (PD). Braak’s Hypothesis of Parkinson’s Disease states that an unknown pathogen enters through the nose, gets swallowed and ends up in the gut. From there it gets taken up into the gut wall and migrates through the vagus nerve into the central nervous system. There it leads to accumulation of alpha-synuclein in the substantia nigra. This destroys the dopamine producing cells in that region causing the symptoms of PD. But we also know that chronic inflammation can aggravate the symptoms of PD patients. When the composition of the gut bacteria deteriorates, this too will make PD patients worse.

Lifestyle changes help to postpone Parkinson’s disease

A healthy diet, like the MIND diet, DASH diet or the Mediterranean diet have beneficial effects on PD patients. Many studies also found that regular physical exercise is a stabilizing factor in PD patients. There are still many gaps in what we know about the causation of PD. But the above summarized factors are a good start.

Jul
30
2023

Learn about Longevity from the Blue Zones

People who live in blue zones often turn 100 or older, so we can learn about longevity from the blue zones. The 5 most often cited blue zones are in Okinawa, Japan; Sardinia, Italy; Nicoya, Costa Rica; Icaria, Greece; and Loma Linda, California, United States. But there are many more blue zones throughout the world. These zones contain the most centenarians, people who have reached the age of 100. It is thought that it is the people’s lifestyle that makes them live much longer than the rest of the world.

Lifestyle of centenarians

People are active, are bicycling, walking, swimming, constantly on the go and they are careful about what they eat. They stay slim, but are muscular. Their diet consists mostly of vegetables and salads, with very little meat. They may consume a small piece of beef on Sundays, but not during the rest of the week. Fish may be a part of their diet two or three times per week.

Diet characteristic of blue zones

Sandee LaMotte  published an article on March 4, 2023 at CNN, which describes the diet consumed in blue zones. People in blue zones are active, handle stress well, are close to friends, have a purpose in life and are often members of a social or religious group. They eat mostly a plant-based diet and they stop eating before they are full.

The food consists of complex carbohydrates. No processed foods are eaten. The American Heart Association says: “Complex carbohydrates, such as beans, peas, vegetables and whole grains provide vitamins, minerals and fiber that can go missing in processed and refined foods. In addition, they are digested more slowly, and the fiber helps you feel full longer.”

Origin of blue zone foods

The blue zone food has its roots in the African, Asian, Latino and Native American diets. Dan Buettner originally published an article about the blue zones in the National Geographic Magazine. Recently he published a collection of 100 blue zone recipes in book form.

The Mediterranean diet is very close to blue zone eating.

What blue zone meals contain

Buettner said: “The five pillars of every longevity diet, including the blue zone, are whole grains, vegetables in season, tubers, nuts and beans. In fact, I argue the cornerstone of a longevity diet is beans.” People in blue zones eat similar foods as those who eat a Mediterranean diet, but they do not eat as much fish as people on a Mediterranean diet. People on a blue zone diet don’t eat any milk products. On the other hand, goat and sheep’s milk cheeses such as feta and pecorino are part of the blue zone diet. In the blue zones the consumption of purple sweet potatoes, sesame seeds, fresh vegetables and fruit are the major staples.

More info about Blue Zone diet

All of the meals contain complex carbohydrates, micronutrients and a whole variety of fiber.

Perhaps the important difference to the Standard American diet is that in the blue zone there is a lack of beef, hamburgers, processed foods and highly processed carbohydrates like bread, pasta, sugar-sweetened beverages, salty snacks like potato chips, candies, cookies and processed meats (bacon, sausages or cold-cuts). People in blue zones eat very little bread and if they do, they eat sourdough bread, which does not raise the blood sugar level as the highly refined white bread.

Recapturing healthy foods

So, what foods are blue zone people really eating? Tofu, quinoa, mushrooms, lentils, beans, turnip greens, artichokes, asparagus, chickpeas and spinach are the main staples of their nutrition. They stay away from sugar, rarely eat meat (once or twice per week) and otherwise have a healthy lifestyle. Scientists think that longevity comes from the healthy lifestyle and diet, which centenarians practice. Several longevity genes get activated as explained in this publication. This translates into living long lives with very few illnesses and experiencing energy until the end of their lives.

Learn about Longevity from the Blue Zones

Learn about Longevity from the Blue Zones

Conclusion

We can learn a lot from observing what centenarians eat and do. Scientist have investigated the lifestyle of people living in blue zones in various parts of the world. These zones contain the most centenarians, people who have reached the age of 100. People in blue zones eat mostly vegetables and very little red meat. They avoid sugar and processed foods. But they are also very active, have a rich social life and allow themselves enough sleep. Scientists accumulated evidence that genetic longevity switches are activated by the life style of people living in blue zones.  It is the activation of these epigenetic switches that are responsible for the longevity of people in blue zones.

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Aug
27
2022

Ultra-Processed Food and Dementia

Researchers are more and more concerned about an association between ultra-processed food and dementia. A new study found that when you consume more than 20% of you daily food intake as processed food, you can start developing cognitive decline. Eating just 2 cookies per day, which have about 100 calories, will lead to cognitive decline.

What is processed food?

Foods such as instant noodles, hot dogs and ice cream are not healthy. There is too much salt, sugar and unhealthy fat in them that undermine your health. If you consider breakfast granola as “healthy”, you’d better take a look at the ingredients: sugar is one of them! Frozen meals, sugary drinks, take-out pizzas, deep-fried chicken and French fries also belong to unhealthy foods. Unless you buy fresh ingredients and make your own Mediterranean-style meals, you will struggle staying healthy. Processed foods lead to weight gain, which is difficult to shed unless you give up processed food.

Processed food often contains flavorings, colorings or other additives. White bread and bakery products, fried snacks, crackers, cookies, ice cream, candy, cream cheese and processed cheese, soda and frozen meals fall into this category.

Conference in San Diego

At the 2022 Alzheimer’s Association International Conference in San Diego researchers revealed the results of a Brazilian study. 10,000 Brazilians were followed with dietary habits and intermittent cognitive tests for up to 10 years. In the beginning none of the participants had a cognitive deficit. The average age at the time of the beginning of the study was 51 years. When you eat more than 20 % ultra-processed food of your total calorie intake every day, cognitive decline is showing up on the cognitive tests. Specifically, patients who consumed more than 20% calories from ultra-processed food developed 28% faster decline in cognitive tests. They also developed 25% faster decline in executive functioning.

Comment from a co author

Co Author Dr. Claudia Suemoto, an assistant professor in the division of geriatrics at the University of São Paulo Medical School stated: “In Brazil, ultra-processed foods make up 25% to 30% of total calorie intake. We have McDonald’s, Burger King and we eat a lot of chocolate and white bread. It’s not very different, unfortunately, from many other Western countries”. She went on to say: “58% of the calories consumed by United States citizens, 56.8% of the calories consumed by British citizens, and 48% of the calories consumed by Canadians come from ultra-processed foods”. She expressed her concern that these statistics show that many more seniors than now will develop Alzheimer’s disease. In the Brazilian study researchers followed their subjects for up to 10 years. After decades of exposure to ultra-processed food the numbers of people with cognitive deficits and Alzheimer’s disease will be much higher.

Other means to prevent cognitive decline

A study showed that regular aerobic exercises (running, treadmill, walking) or stretching, balancing and range of motion exercises both prevented cognitive decline. The best is to build some form of exercise into your daily routine. This is particularly important for people who have desk jobs.

What are healthy foods to eat?

We need to eat more vegetables, fruit and cut out sugar, omit too many starchy foods, salt and unhealthy fats. So, how does that work? In the following I am giving examples of a healthy breakfast, lunch and dinner.

Breakfast

Start the day with fresh fruit, a bowl of rolled oats with milk or a milk alternative. Add a few almonds or chopped nuts or ground flaxseed. You could add raspberries, blackberries, strawberries or blueberries.

If you want a breakfast with egg, try an omelet with eggs or egg white with mushrooms, onions and chopped greens! No, it does not always have to be kale! Enjoy arugula or spinach. Add some salsa on the side.

For those who hate to prepare breakfast, take it easy: put 1/2 a banana, a cup of berries, 1 tablespoon almond butter and 3/4 cup of low-fat yoghurt into the blender. Blend at high speed. This takes less than 2 minutes. Enjoy! It does not get much easier than that.

Lunch

Assemble some mixed salad greens, 1 sliced tomato, 1 cup of sliced cucumber, half a sliced avocado and 1/2 shredded carrot on a plate or in a bowl. Add 2 slices of cheese or 2 tablespoons of crumbled feta cheese. Add one boiled and sliced egg or alternatively 4 slices of chicken breast. Make a dressing of 2 tablespoons of olive oil and 1 tablespoon of balsamic vinegar. You can prepare this easy lunch the evening before and take it to work.

If you want a warm lunch, cook a simple Italian-style vegetable soup. Sprinkle it with a tablespoon of grated parmigiano cheese and serve it with a slice of whole-grain bread. A vegetable chili is a good choice for a colder day. Have some fresh fruit for dessert.

Dinner

Make vegetables the main event. Do not have a huge steak with an afterthought of vegetables, but build a tasty meal around vegetables with a protein of your choice: lean meats, such as chicken breast, enjoy fish or other seafood or experiment with other protein sources, such as tofu. The latter works well in an Asian-style vegetable stir-fry. And otherwise: breaded and deep-fried chicken or battered fish are not healthy choices, even if you prepare the meal at home! Forget the breading and dip the meat into a tasty marinade instead! If you want to have a quick dessert, make a colorful fruit salad with a dollop of yoghurt on top. For all those who drool over a decadent dessert in a restaurant, go ahead and order that Tiramisu and share it with others of your party. But it should be an exception rather than a regular treat.

Ultra-Processed Food and Dementia

Ultra-Processed Food and Dementia

Conclusion

Researchers are more and more concerned about an association between ultra-processed food and dementia. A new study found that when you consume more than 20% of you daily food intake as processed food, you start developing cognitive decline. Eating just 2 cookies per day, which have about 100 calories, will lead to cognitive decline. It is fairly easy to cut out junk foods from your diet and to adopt healthy eating ha its.

Meal suggestions

Start the day with fresh fruit, a bowl of rolled oats with milk or milk alternative. Add a few almonds or chopped nuts or ground flaxseed. You could add raspberries, blackberries, strawberries blueberries. I sweeten everything with stevia extract and avoid sugar completely. For lunch you could have mixed salad greens with 2 slices of cheese or 2 tablespoons of crumbled feta cheese. Add one boiled and sliced egg or alternatively 4 slices of chicken breast. For dinner make vegetables the main event. Do not have a huge steak with an afterthought of vegetables, but build a tasty meal around vegetables with a protein of your choice: lean meats, such as chicken breast, enjoy fish or other seafood or experiment with other protein sources, such as tofu.

Final remark

You see, it is fairly easy to avoid ultra-processed foods that lead to cognitive decline. It involves a critical look at your current eating habits and very likely some cleaning-out of less than desirable foods from your pantry.

Oct
17
2020

What can Happen to Your Body Over Months of Isolation

A recent article by CNN describes what can happen to your body over months of isolation at home. The article is rather negative showing all the possible things that can go wrong. I have been isolated as well since March 2020. I handle the isolation differently than described in the article. I will comment to each point what can be done differently to avoid the complications mentioned.

Muscle loss

The CNN article makes the point that inactivity can make you lose muscle bulk within only one week. A lack of exercise weakens your muscle strength. And muscle strength has been associated with longevity.

My comment:

I do a brisk walk of 5 to 7 kilometers daily. This maintains my muscle bulk. But I have a treadmill in the basement and a couple of weights that I can use, if it rains outside.

There is a danger that heart and lungs get weaker

You need to raise your heart rate and you also need to perfuse your lungs through exercise. Many people do not like exercise. They sit in front of the TV for hours or they surf the net on the computer. Even just reading a book does not give you enough exercise to get your heart rate up and increase your lung perfusion.

My comment:

A brisk walk with proper distancing gives you fresh air, exercises your muscles, your heart and your lungs. It maintains your cardiovascular fitness.

Weight gain

Being home all the time allows you to look into the fridge more often and eat snacks that are processed. People tend to eat more often than 3 times a day. The end result is that you gain weight. In the beginning of the epidemic people stocked up on non-perishable foods. Often they contain more sugar and carbohydrates. Consuming these foods leads to weight gain. Wearing masks, frequent hand washing, isolation practices and change of normal routines makes people get stressed. Stress leads to overeating and weight gain.

My comment:

In the last 6 months that I did home isolation my body mass index (BMI) stayed in the 21.0 to 22.0 range. I ate three meals a day. I avoided processed foods as they are overloaded with sugar, salt and refined carbs. Once a month I do a 5-day fasting mimicking diet according to Dr. Longo. This ensures that my BMI stays within the range I indicated. Otherwise I eat a Mediterranean diet, which is anti-inflammatory.

Your posture could suffer

When you are seated in front of the computer or the TV you tend to engage in poor postures. This can lead to strains of your back, neck, shoulders and hips. Staring at the computer screen or the TV can also give you eye strain.

My comment:

The key is movement, such as getting up and walking around; doing other activities like lawn mowing, weed eating or doing dishes. This interrupts any longer stretch of bad posture.

Your sleep quality can suffer

The more exposure to sunlight during the day you get, the more vitamin D you produce in the skin. Some people lack the necessary enzymes in the skin to convert cholesterol into vitamin D. But exposure to sunlight also helps to reinforce your diurnal hormone rhythm. This is also called circadian rhythm. Avoid blue lights (TV, computer, iPhones etc.) in the evening before bedtime as this can interfere with a deep sleep later. Also go to bed early enough (between 10 and 11 PM) to allow your circadian rhythm to take over.

My comment:

Some people (above the age of 60) benefit from 3 mg of melatonin at bedtime. After the age of 60 people no longer produce enough melatonin in the pineal gland. If I wake up in the middle of the night, I take another 3 mg of melatonin prior to 3AM. Caution: after 3 AM melatonin can give you a bit of a hangover in the morning.

Your brain can slow down

The brain needs nutrition and exercise. Exercise can eliminate certain amino acid by-products that otherwise turn into neurotoxins. With exercise you even prevent neurotoxins to enter the brain.

My comment:

I find that I must at least do a brisk walk of 4 kilometers a day. It prevents back pain, helps me sleep better and keeps my mind clear. But as mentioned earlier I prefer doing a brisk walk for 5 to 7 kilometers a day. In the past (prior to March 2020 when the Covid-19 pandemic started) I went to the gym every day. When it finally reopened, they had one Covid-19 case at the gym. I decided that it is too dangerous to go back to the gym until a safe Covid-19 vaccine is available in the summer of 2021. I feel the same way about flying. It is not worth the risk. I can just stay local and do my own program. The pleasure of traveling can wait until the summer of next year.

What can Happen to Your Body Over Months of Isolation

What can Happen to Your Body Over Months of Isolation

Conclusion

A recent CNN article described the dangers of passively staying in home isolation. I felt that this article was on the negative side. I found that by including a regular brisk walking program into my daily lifestyle the day got more structured. I felt I had more energy and I had no aches or pains. If I spent too much time watching TV or spending in front of the computer, I developed back aches and felt sluggish. I incorporated a 5-day fasting mimicking diet according to Dr. Longo once per month into my regular Mediterranean diet. This allowed me to keep my body mass index in the 21.0- 22.0 range. Doing what I described above I could continue to hold my weight, have energy and stay pain free for many more months. But when the Covid-19 vaccine arrives in spring/summer of 2021 I hope that things will return to normal.

Aug
08
2020

Poor Diets Threaten Americans and Cause Diseases

A new Federal Nutrition Research Advisory Group stated that poor diets threaten Americans and cause diseases. More than 500,000 people in the US are dying every year because of poor nutrition. 46% of adults have unhealthy diets; but children have even more, namely 56%. In 1979 the US healthcare cost was 6.9% of the gross domestic product. Compare this to 2018 when the US healthcare cost was 17.7% of the gross domestic product.

The Federal Nutrition Research Advisory Group states: “Poor diets lead to a harsh cycle of lower academic achievement in school, lost productivity at work, increased chronic disease risk, increased out-of-pocket health costs, and poverty for the most vulnerable Americans.”

You can improve your diet quality 

When you start cutting out junk food and other processed foods, the quality of your food intake is improving. Eat more vegetables, and fruit. Eat wild salmon, which provides omega-3 fatty acids. Do not consume vegetable oils like soybean oil, canola oil, safflower oil, corn oil and grapeseed oil. They all contain omega-6 fatty acids. Omega-6 fatty acids are essential fatty acids and they convert mainly into energy. But the problem is that our western diet contains too many omega-6 fatty acids. Omega-6 fatty acids can convert into arachidonic acid, which causes inflammation. This in turn can cause heart attacks and strokes on the one hand and arthritis on the other. Use cold-pressed extra virgin olive oil instead for cooking and on salads.

How does poor quality food affect your health?

Researchers are aware of trans fats causing Alzheimer’s disease, heart attacks and strokes for a long time. They increase the bad LDL cholesterol, decrease the good HDL cholesterol. Rancid oils contain free radicals that oxidize LDL cholesterol and attack the lining of your arteries through small dense LDL cholesterol. The FDA has started to initiate steps in 2015 to make the use of trans-fats in the food industry illegal. Completion of this in the US occurs in early 2020.

Japanese trans-fat study (Alzheimer’s disease)

This Japanese study followed 1,628 Japanese community residents (men and women) for about 10 years. Researchers used the typical trans fatty acid, elaidic acid to monitor the accumulation of trans fats in patients. This is possible with a simple blood test, which serves as a marker for industrial trans fats. 377 participants developed dementia (247 Alzheimer’s disease and 102 vascular dementia). Based on the blood elaidic acid levels earlier in the study individuals with higher trans-fat levels were more likely to develop Alzheimer’s disease as the study progressed. Patients whose trans-fat blood levels were in the higher range were 50% to 75% more likely to develop Alzheimer’s disease or dementia.

Diseases caused by poor lifestyle habits

It is important to review the diseases that shorten life expectancy due to having poor lifestyle habits. Note that it is not only your dietary habits that determine this, but in addition, several lifestyle factors.

Cardiovascular disease

Smoking, lack of regular exercise and poor eating habits result in being overweight or developing obesity. All of these are risks with LDL cholesterol elevation and HDL cholesterol lowering that leads to heart attacks and strokes. Here is a study that shows how life is shortened after a heart attack. It is clear from this how important it is to give up all of the poor lifestyle habits to avoid this from happening.

Cancer

90% of lung cancers are the result of cigarette smoking. Heavy drinking can contribute and also lead to cancer of the liver, esophageal cancer, cancer of mouth and throat and cancer of the breasts in women. In addition, consuming too much alcohol causes cancer of the colon and rectum in both sexes.

Diabetes

There are a variety of risk factors causing diabetes. Obesity, a lack of exercise, a bad diet with too much carbohydrates and the aging process are what contributes to the development of type 2 diabetes.

We see again that it is largely lifestyle issues that drive the onset of this disease. People who have developed diabetes need to control their blood sugar very closely to avoid complications of diabetes. This includes making healthier choices.

Otherwise complications of diabetes are diabetic nephropathy, blindness from macular degeneration of the cornea, heart attacks, stroke and diabetic neuropathy. In addition, vascular complications also include artery occlusions in the lower extremities with frequent foot or below knee amputations.

Chronic diseases

Often chronic diseases develop when there is generalized development of inflammation. COPD, chronic kidney disease and arthritis are examples of such conditions. In addition, Alzheimer’s disease, arthritis, asthma, Crohn’s disease, cystic fibrosis and diabetes belong into this category. All of these chronic diseases have in common that cytokines produce inflammation in the body. This keeps the chronic disease going and makes it more difficult to cure. When the person with a chronic disease makes poor lifestyle choices, the inflammation just becomes more chronic.

Smoking is one of the factors that makes chronic inflammation more chronic. Having a body mass index above 25.0 (being overweight) and above 30.0 (obesity) also creates more inflammation in the body. Excessive alcohol intake damages body cells and releases free radicals. These in turn cause inflammation and make the chronic disease more difficult to treat. An unhealthy diet tends to raise the bad LDL cholesterol, introduces pesticides and other chemicals into your system and adds to chronic inflammation. Finally, a lack of exercise is not contributing to a healthy circulation and lowers the protective HDL cholesterol, paving the way for heart attacks and strokes.

Poor Diets Threaten Americans and Cause Diseases

Poor Diets Threaten Americans and Cause Diseases

Conclusion

A new Federal Nutrition Research Advisory Group has been formed, which noted that many Americans follow very poor diets. 46% of adults in the US have unhealthy diets; but children have even more poor diets, namely 56%. This is of concern, because in time this causes a variety of diseases discussed here. Instead of just treating the symptoms of these diseases, it is important to improve the diet people are on, which prevents the development of these diseases. A well-balanced diet not only prevents diseases, it also leads to longevity and healthy aging without Alzheimer’s disease. Take care of what you eat, and be sure it is healthy!

Part of this text was published before here.