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Some study results seem totally obvious, leading one to say; "well, duh...". One such recent study found that listening to music during times of stress can lead to lowering of stress and an improved mood. Of course it does!

The study was done during the recent COVID-19 lockdowns in the spring of 2020 in Austria and Italy with 711 young(er) adults - median age 27 years.

The Univ. of Vienna researchers found that happy or uplifting music was especially good in lowering stress and improving the mood. Also, people reported feeling more awake and energized after listening to more energizing music than was usual for them. The opposite was reported after listening to calming music.

Betcha many (most?) of us have favorite songs we listen to during stressful times.

From Medical Xpress: Study shows that listening to music during stressful times can boost your mood and reduce stress

A team of researchers at the University of Vienna has found evidence showing that listening to music when stressed can boost a person's mood and help them relax. In their paper published on the JAMA Network Open site, the group describes an experiment they conducted with volunteers under stress caused by living under the rules of the lockdown during the early days of the global pandemic. ...continue reading "Study Finds Listening to Music Can Lower Stress and Improve Mood"

scale, weightThere has been a debate going on for a while about what is better for weight loss: intermittent fasting (eating only during designated time periods, without calorie counting) or actually cutting back calories. One recent study examined this issue and found that...drum roll.... the frequency of meals (and calories) a person eats every day is more important for weight loss than intermittent fasting.

Main finding: Large or moderately sized meals (no matter when eaten) were associated with weight gain over the 6 year period of the study, while eating fewer, small meals were associated with weight loss. In other words, the number of meals eaten each day and meal sizes (calories), and not their timing, was most important in determining weight gain or loss.

The results did not support intermittent fasting (time-restricted eating) as a weight loss strategy. Instead, focus on calorie intake. Bummer... You didn't think it would be easy, did you?

Excerpts from Science Daily: Reducing total calories may be more effective for weight loss than intermittent fasting

The frequency and size of meals was a stronger determinant of weight loss or gain than the time between first and last meal, according to new research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association. ...continue reading "Study Finds Calorie Intake More Important Than Timing of Meals For Weight Gain or Loss"

Fast food Credit: Wikipedia

The results of a recent study may give extra motivation to those trying to cut back on the amount of fast food that they eat. The study found that consumption of fast food is linked to nonalcoholic fatty liver disease (NAFLD).

The researchers found moderate increases in liver fat in everyone consuming  20% or more of daily calories from fast food (about 1 meal a day). They also found that obese individuals or people with diabetes who consume 20% or more of their daily calories from fast food had severely elevated levels of fat in their liver.

We already know that fast foods are associated with a greater risk of diabetes and heart disease, and now NAFLD can be added. It is thought that NAFLD affects 30% of the U.S. population!

According to the US National Institute of Health: "Nonalcoholic fatty liver disease (NAFLD) is a condition in which fat builds up in your liver. Nonalcoholic fatty liver (NAFL) and nonalcoholic steatohepatitis (NASH) are types of NAFLD. If you have NASH, you have inflammation and liver damage, along with fat in your liver."

What to do about this abnormal build up of fat in the liver? The only treatment is changing your diet and losing weight. A healthy diet is one rich in fruits, vegetables, legumes, whole grains, seeds, and nuts. For example, a Mediterranean style diet.

From Science Daily: Consumption of fast food linked to liver disease

A study from Keck Medicine of USC published today in Clinical Gastroenterology and Hepatology gives people extra motivation to reduce fast-food consumption. ...continue reading "Fast Food and Liver Disease"

Some good news for those finding it hard to find time or motivation for lengthy exercise sessions. It turns out that frequent little bursts of exercise about 1 to 2 minutes long also have tremendous health benefits, even if you spend most of the day sitting. Think of them as "exercise snacks".

An exercise or activity snack is a "brief snippet of exercise, usually lasting a minute or two, and done frequently during the day". There are studies (exercise snacking research!) finding it a good way to improve fitness, especially cardiorespiratory fitness and cardiometabolic health. The benefits of exercise snacking can be comparable to lengthier traditional workouts.

Some examples of exercise or activity snacks: walking quickly up and down a staircase, walking quickly around a room, rising and lowering 15 times from a chair, and jumping up and down. Ideally anything that'll raise your heart rate and breathing briefly. Sounds easier than going to a gym, doesn't it?

The Washington Post has a nice article about exercise snacking. Below that is an example of recent exercise snack research.

From The Washington Post - These 2-minute exercise bursts may be better than your regular workout

Here’s an easy and effective way to add physical activity to your daily routine during the new year: turn your exercise into a snack.

New research shows exercise “snacks,” which consist of brief spurts of exertion spread throughout the day, can improve metabolic health, raise endurance and stave off some of the undesirable changes in our muscles that otherwise occur when we sit too long.

...continue reading "Exercise Snacks Can Be An Easy Way To Improve Fitness"

The more physically active a person is before getting COVID-19, the lower the rates of hospitalization, deterioration events, and death from COVID-19 infection. In other words, physical activity is protective.

The results of a Kaiser Permanente member analysis of 194,191 adults with COVID-19 infection found a strong dose-response relationship - with higher physical activity levels before COVID-19 associated with less severe outcomes.

What levels of exercise were reported by patients? In the 2 years before a COVID-19 infection, physical activity/exercise levels reported by patients were categorized as: always inactive (10 minutes per week or less), mostly inactive (0 to 60 minutes per week), some activity (60 to 150 minutes per week), consistently active (greater than 150 minutes per week), and always active (always greater than 150 minutes per week).

No matter the sex, race, ethnicity, age, BMI categories, whether one had cardiovascular disease or hypertension - the results were generally consistent for everyone. Bottom line: Aim for 150 minutes of physical activity or more every week. [similar results earlier study]

From Medical Xpress: More exercise linked to less-severe COVID-19 outcomes

Kaiser Permanente members who were more physically active prior to being diagnosed with COVID-19 had a lower risk of severe outcomes, according to research published Dec. 15, 2022, in the American Journal of Preventive Medicine. ...continue reading "Higher Physical Activity Levels Associated With Less Severe COVID-19"

Human male sperm Credit: Wikipedia

Oh no... Back in 2017 a large study found that male sperm counts had dropped over 50% since the 1970s in North America, Europe, and Australia. Declining every year, year after year, for over 40 years. This has serious implications for fertility - if sperm counts drop too low, it's very difficult to conceive a baby.

Now those same researchers have published data from 53 countries showing that the sperm count decline is also occurring in Asia, South America, and Africa. And that the decline in male sperm counts is actually accelerating in North America and Europe. Yikes!

Note that this is in men who weren't being screened for fertility problems issues. In other words, random healthy men. Some had already fathered a baby.

Globally, the decline was about 1.16% per year from 1973 to 2018 (resulting in a 52% decline). When the researchers reexamined the data and looked at many more studies, they realized that since 2000 the decline accelerated at 2.64% per year.

Average global sperm concentration was 49 million per milliliter of semen in 2018. The researcher Dr. Swan pointed out that when sperm count drops below roughly 45 million per milliliter, the ability to cause a pregnancy begins to plummet dramatically, and at 40 million and lower the chances of conception are very low without reproductive assistance (e.g., IVF).

Interestingly, sperm counts are not just a male fertility issue, but also an indicator of men's health. Low levels of sperm are associated with increased risk of chronic disease, testicular cancer, and a shorter lifespan. With a decline in sperm numbers there is also a decline in testosterone and male genital anomalies - thus a decline in male reproductive health.

Why is this happening? Several possibilities are probably contributing: mainly lifestyle and also all the chemicals and plastics in our lives (environmental chemical exposure). Endocrine disruptors, phthalates, pesticides! Yes, they are all around us - in the air, the water, consumer products, and our bodies.

Some examples: pesticides, flame retardants, stain and water resistant products. Plastics leach and outgas and we get them into us various ways (skin, inhale them, ingest them in our foods and water). List of ways to reduce exposure to harmful chemicals.

THINGS YOU CAN DO TO IMPROVE SPERM COUNT AND HEALTH:

Lifestyle: Don't smoke. Don't drink or drink very little. Don't do drugs. Don't sit in hot tubs or saunas. Get exercise or physical activity. Eat a diet rich in fruits, vegetables, whole grains, legumes, seeds, nuts. Avoid canned foods, minimize fast food take-out. Eat as much organic as possible. Lose weight, if needed.

Chemical exposure: We can't totally avoid all the chemicals, but we can minimize our exposure. For starters, stop using non-stick cookware, avoid pesticides in the home and yard (look for nontoxic alternatives and view weeds as wildflowers), don't use dryer sheets, buy unscented products (and avoid fragrances). List of ways to reduce exposure to harmful chemicals.

From Science Daily: Significant decline in sperm counts globally, including Latin America, Asia and Africa, follow-up study shows

An international team led by Professor Hagai Levine of Hebrew University of Jerusalem's Hadassah Braun School of Public Health, with Prof. Shanna Swan at the Icahn School of Medicine, Mount Sinai, New York, along with researchers in Denmark, Brazil, Spain, Israel and the USA, published the first meta-analysis to demonstrate declining sperm counts among men from South and Central America, Asia and Africa. ...continue reading "Sperm Counts Are Still Dropping Throughout the World"

Honey
Credit: USDA

Great news for those who like honey! Even though honey is really sweet (lots of sugars!), eating it actually helps your health. Univ. of Toronto researchers analyzed 18 well done studies and found that honey improved key measures of cardiometabolic health, including blood sugar and cholesterol levels.

These results are interesting because they contrast with other research finding a high intake of sugars (e.g., sugar, high fructose corn syrup, soda) contributing to obesity, type 2 diabetes, and cardiovascular disease. Unfortunately, most regulatory agencies, including the World Health Organization, the Heart and Stroke Foundation, and the FDA (US Food and Drug Administration), include honey within their definition of free or added sugars. And advise limiting intake.

However, honey is not like other sugars. Honey has a complex composition of organic acids, minerals, vitamins, enzymes, proteins, amino acids, and bioactive substances. Rare sugars constitute around 14% of the sugar content of honey. Raw honey also contains probiotic bacteria.

All sorts of studies (in vitro, animal, clinical) have shown that honey has health benefits for cardiometabolic health. Among these benefits are improvements in body weight, inflammation, lipid profile, and glycemic control.

What kind is best? The Univ. of Toronto researchers found that the best health results are found with consumption of raw honey, clover honey, and robinia honey. In other words, honey that is not processed (raw honey) or from only 1 floral source (e.g., clover, acacia/robinia).

How much is best? The median dose consumed was 40 g or about 2 tablespoons daily, usually added to foods or beverages as a sweetener (e.g., in tea, mixed with yogurt, spread on bread) . Enjoy!

From Science Daily: Sweet: Honey reduces cardiometabolic risks, study shows

Researchers at the University of Toronto have found that honey improves key measures of cardiometabolic health, including blood sugar and cholesterol levels -- especially if the honey is raw and from a single floral source.  ...continue reading "Study Finds Health Benefits From Eating Honey"

Soda Credit: Wikipedia

All of us should be concerned about harmful health effects from a sedentary lifestyle, along with drinking lots of sugary soda. However, according to a (very) small study, ten days of adopting this lifestyle seems to have more of a negative effect on healthy young men than on women, at least in the short term.

Even just 10 days of reducing physical activity (from greater than 10,000 steps to less than 5000 steps per day) and increasing soda intake (to 6 cans a day!) was enough to have a negative effect on insulin levels (vascular insulin resistance) in healthy young men. But the Univ. of Missouri researchers found no real effect on the young women.

From Medical Xpress: Sedentary lifestyle and sugary diet more detrimental to men, study finds

A new study from the University of Missouri School of Medicine is the first evidence in humans that short-term lifestyle changes can disrupt the response to insulin of blood vessels. It's also the first study to show men and women react differently to these changes. ...continue reading "Ten Days of Unhealthy Lifestyle Has Greater Effect on Young Men than Women"

Eating nuts is good for your health. A study conducted in the UK found that eating either a handful (56 grams) of whole or ground almonds every day for 4 weeks significantly increased the production of butyrate, a short-chain fatty acid that promotes gut health.

The study participants were persons eating a typical Western diet - low in fiber (less than the recommended amount), and with daily unhealthy snacks (chips, crisps, candy). The control group ate a muffin instead of almonds, and showed no improvements over the 4 weeks of the study. None of the 3 groups had significant changes at the microbiome level, which wasn't surprising because the rest of their diets stayed the same.

In other words, in a person who normally eats a typical Western diet - eating an additional handful of nuts daily helps with butyrate production (good!) and provides extra nutrients. But it's not enough of a dietary change to have a significant effect on the microbiome. For gut microbiome improvement need to add some fermented foods and more fruits, vegetables, whole grains, seeds, legumes, and nuts.

From Science Daily: Snacking on almonds boosts gut health, study finds

Eating a handful of almonds a day significantly increases the production of butyrate, a short-chain fatty acid that promotes gut health. ...continue reading "Almonds Are Good For You"

Many of us do not get enough sleep at night. Unfortunately, this is bad for our health. Another large study just confirmed this - they found that consistently getting 5 or fewer hours per night during mid-life or later in life is linked to developing several diseases.

Sleeping 9 or more hours at 60 or 70 years of age (but not at age 50) was also associated with developing multiple chronic diseases. No association was found between sleep duration and early death among those with existing chronic diseases.

The study, conducted in the UK, looked at sleep amounts in more than 7000 persons over a 25 year span (when they were 50, 60, and 70 year old). Persons with short sleep duration (5 or fewer hours) had a higher risk of developing not just one chronic disease, but multiple chronic diseases.

The possible chronic diseases were: diabetes, cancer, coronary heart disease, stroke, heart failure, chronic obstructive pulmonary disease (COPD), chronic kidney disease, chronic liver disease, depression, dementia, mental disorders, Parkinson's disease, arthritis/rheumatoid arthritis.

From Science Daily: Five hours' sleep a night linked to higher risk of multiple diseases

Getting less than five hours of sleep in mid-to-late life could be linked to an increased risk of developing at least two chronic diseases, finds a new study led by UCL researchers. ...continue reading "Sleeping Less Than Five Hours A Night Ups the Risk For Health Problems"