Although I personally prefer moderate intensity exercise, maybe it’s my age, I understand that a lot of younger folks are into the high intensity activity. More power to you.
A few minutes of high-intensity interval or sprinting exercise may be as effective as much longer exercise sessions in spurring beneficial improvements in mitochondrial function, according to new research. The small study is published ahead of print in the American Journal of Physiology—Regulatory, Integrative and Comparative Physiology.
Mitochondria, the energy centers of the cells, are essential for good health. Previous research has found that exercise creates new mitochondria and improves the function of existing mitochondria. Altered mitochondrial function in response to a single session of exercise generates signals that may lead to beneficial changes in the cells, lowering the risk for chronic disease. High-intensity interval exercise consists of short bursts of high-intensity aerobic exercise—physical activity that raises the heart rate—alternating with brief recovery periods. Whether the intensity of a workout affects mitochondrial response is unclear. Continue reading
I just ran across this infographic and was touched by its simplicity. Basic as it is, I hope you have these going for you on a daily basis. I think they are the keys to a long and healthy life.
As a senior, I consider this to be very good news.
People who include a little yoga or tai chi in their day may be more likely to remember where they put their keys. Researchers at the University of California, Irvine and Japan’s University of Tsukuba found that even very light workouts can increase the connectivity between parts of the brain responsible for memory formation and storage.
In a study of 36 healthy young adults, the researchers discovered that a single 10-minute period of mild exertion can yield considerable cognitive benefits. Using high-resolution functional magnetic resonance imaging, the team examined subjects’ brains shortly after exercise sessions and saw better connectivity between the hippocampal dentate gyrus and cortical areas linked to detailed memory processing.
Their results were published in Proceedings of the National Academy of Sciences. Continue reading
I stumbled across this and thought it might interest you. As regular readers know I am a 78-year-old guy who lives in Chicago and rides his bike daily. I am most grateful for the ability to do just that. There are many seniors, perhaps someone in your family, who have lost some mobility. In the course of writing this blog I have become aware of just how damaging a sedentary lifestyle can be. I thought there were some interesting ideas expressed in the video (less than 3 minutes) which was produced by the BBC in Britain.
To read further on the effects of a sedentary lifestyle check out the following posts:
Combat that sedentary lifestyle with more movement – Harvard
Fitness over 50 – Overcoming a sedentary lifestyle – Harvard
A physiologic link between heart disease and a sedentary lifestyle
Exercise may help counter health risks of a sedentary lifestyle
Physical activity cuts heart disease risks for seniors – AHA
With age, expression of a small molecule that can silence others goes way up while a key signaling molecule that helps stem cells make healthy bone goes down, scientists report.
They have the first evidence in both mouse and human mesenchymal stem cells that this unhealthy shift happens, and that correcting it can result in healthier bone formation.
The small molecule is microRNA-141-3p and the signaling molecule is stromal-cell derived factor, or SDF-1, they report in the Journal of Gerontology: Biological Sciences.
“If you are 20 years old and making great bone, you would still have microRNA-141-3p in your mesenchymal stem cells. But when you are 81 and making weaker bone, you have a lot more of it,” says Dr. Sadanand Fulzele, bone biologist in the Department of Orthopaedic Surgery at the Medical College of Georgia at Augusta University.
Restoring a more youthful balance could be a novel strategy for reducing age-associated problems likes osteoporosis and the impaired ability to heal bone breaks, says Fulzele, a corresponding author on the study. Continue reading
The living longer phrase in my Diet, Exercise and Living Longer title assumes that one has his mental faculties intact. Having seen first hand the scourge of dementia, I don’t want any part of that if I can help it. Exercise is super for combating cognitive problems. Check out my Page – Important facts about your brain – (and exercise benefits) to learn more.
The blueberry, already labeled a ‘super fruit’ for its power to potentially lower the risk of heart disease and cancer, also could be another weapon in the war against Alzheimer’s disease. New research being presented today further bolsters this idea, which is being tested by many teams. The fruit is loaded with healthful antioxidants, and these substances could help prevent the devastating effects of this increasingly common form of dementia, scientists report.
The researchers presented their work at the National Meeting & Exposition of the American Chemical Society (ACS). ACS. It featured more than 12,500 presentations on a wide range of science topics. Continue reading
More exercise was not always better, and the study found that exercising for 45 minutes three to five times a week was associated with the biggest benefits.
Riding a bike scored really high in the study
The study included all types of physical activity, ranging from childcare, housework, lawn-mowing and fishing to cycling, going to the gym, running and skiing.
Exercise reduces the risk of cardiovascular disease, stroke, diabetes, and mortality from all causes, but its association with mental health remains unclear.
Previous research into the effect of exercise on mental health has conflicting results. While some evidence suggests that exercise may improve mental health, the relationship could go both ways – for example inactivity could be a symptom of and contributor to poor mental health, and being active could be a sign of or contribute to resilience. The authors note that their study cannot confirm cause and effect.
Eat less; move more; live longer. The World Health Organization agrees. Following are the potential results of inadequate exercise for all age groups, according to the WHO.
– Insufficient physical activity is one of the leading risk factors for death worldwide.
– Insufficient physical activity is a key risk factor for noncommunicable diseases (NCDs) such as cardiovascular diseases, cancer and diabetes.
– Physical activity has significant health benefits and contributes to prevent NCDs.
– Globally, 1 in 4 adults is not active enough.
– More than 80% of the world’s adolescent population is insufficiently physically active.
– Policies to address insufficient physical activity are operational in 56% of WHO Member States.
WHO Member States have agreed to reduce insufficient physical activity by 10% by 2025.
What is physical activity?
WHO defines physical activity as any bodily movement produced by skeletal muscles that requires energy expenditure – including activities undertaken while working, playing, carrying out household chores, travelling, and engaging in recreational pursuits.
The term “physical activity” should not be confused with “exercise”, which is a subcategory of physical activity that is planned, structured, repetitive, and aims to improve or maintain one or more components of physical fitness. Beyond exercise, any other physical activity that is done during leisure time, for transport to get to and from places, or as part of a person’s work, has a health benefit. Further, both moderate- and vigorous-intensity physical activity improve health.
How much of physical activity is recommended? Continue reading
I ran across this infographic in my web wanderings and thought you might enjoy it.
Eat less; move more; live longer
Check out my Page – Do you know the dangers of too much sitting? for more.
Again there are echoes of our mantra, eat less; move move; live longer.
Adults in their early 60s, who spend less time sitting and more time engaged in light to vigorous physical activity, benefit with healthier levels of heart and vessel disease markers, according to new research in Journal of the American Heart Association, the Open Access Journal of the American Heart Association/American Stroke Association.
The results from increased physical activity were found to be particularly good among women.
Physical inactivity is a well-known risk factor for cardiovascular disease and premature death from cardiovascular disease. Physical activity’s protective effect is likely due in part to its impact on biomarkers in the blood that help predict atherosclerosis risk.
“The 60 to 64 age range represents an important transition between work and retirement, when lifestyle behaviors tend to change,” said Ahmed Elhakeem, Ph.D., study author and senior research associate in epidemiology at Bristol Medical School, University of Bristol in the United Kingdom. “It may, therefore, be an opportunity to promote increased physical activity.
“In addition, cardiovascular disease risk is higher in older adults. It’s important to understand how activity might influence risk in this age group,” Elhakeem said. “We found it’s important to replace time spent sedentary with any intensity level of activity.” Continue reading
Eat less’ move more; live longer – and, we might add, the sooner the better, according to the latest information from the American Heart Associaton.
Being overweight may cause higher blood pressure and changes to the heart’s structure, even in young adults.
Even as a young adult, being overweight may cause higher blood pressure and thicken heart muscle, setting the stage for heart disease later in life, according to new research in the American Heart Association’s journal Circulation.
The study is the first to explore if higher body mass index (BMI) – a weight-for-height index – results in adverse effects on the cardiovascular system in young adults.
While observational studies can suggest associations between risk factors or lifestyle behaviors and heart disease, they cannot prove cause-and-effect. Here, investigators triangulated findings from three different types of genetic analysis to uncover evidence that BMI causes specific differences in cardiovascular measurements. Continue reading
Eat less; move more; live longer. It’s never too late to start.
Exercising regularly throughout life is the best way to keep your heart healthy. But starting to exercise even in late middle age may lessen the risk of heart failure, according to a report in the May 15 issue of Circulation. Heart failure, a gradual decline in the heart’s ability to pump enough blood to meet the body’s needs, affects about 6.5 million people in the United States.
The study involved more than 11,000 people who were part of a long-running project begun in the late 1980s, the Atherosclerosis Risk in Communities Study. Every six years, participants got medical testing and filled out questionnaires about their physical activity.
People who followed federal recommendations for physical activity (see How much physical activity do you need?) for the first 12 years of the study had the lowest risk of heart failure—31% lower than people who didn’t exercise at all. But people who increased their physical activity levels starting around age 60 over a period of just six years lowered their risk by 12%.
This is perfectly in line with our mantra of eat less; move more; live longer. Besides all the health benefits of exercise on the brain and body, Harvard Health Publishing says that it also reduces stress.
How does exercise reduce stress, and can exercise really be relaxing?
Rest and relaxation. It’s such a common expression that it has become a cliche. And although rest really can be relaxing, the pat phrase causes many men to overlook the fact that exercise can also be relaxing. It’s true for most forms of physical activity as well as for specific relaxation exercises.
Exercise is a form of physical stress. Can physical stress relieve mental stress? Alexander Pope thought so: “Strength of mind is exercise, not rest.” Plato agreed: “Exercise would cure a guilty conscience.” You’ll think so, too — if you learn to apply the physical stress of exercise in a controlled, graded fashion.
How exercise reduces stress
Aerobic exercise is key for your head, just as it is for your heart. You may not agree at first; indeed, the first steps are the hardest, and in the beginning, exercise will be more work than fun. But as you get into shape, you’ll begin to tolerate exercise, then enjoy it, and finally depend on it. Continue reading
I wanted to share this fine rundown of finding the gold in the golden years. As a dog lover I am a follower of Paul Handover’s Learning from Dogs blog. Clearly, this post covers ground most germaine to Diet, Exercise and Living Past 100.
Learning from Dogs
Living well as we age.
TIME magazine published a double-issue in February of this year How To Live Longer Better!
The article, on Page 47, opens:
Old age demands to be taken very seriously – and it usually gets its way!
Then later on in that same article one reads:
Exactly how much – or how little – exercise it takes to begin paying dividends has been one of the happy surprises of longevity research. A 2016 study found that elderly people who exercised for just 15 minutes a day, at an intensity level of a brisk walk, had a 22% lower risk of early death compared to people who did not exercise.
Then two sentences later:
Researchers from McMaster University in Canada even found that breaking a sweat for just 60 seconds may be long enough to improve health and fitness (as long as it’s a tough workout).
View original post 550 more words
Spoiler alert: Exercise has a positive effect on our food cravings. Eat less; move more; live longer.
A newly published study from the University of Waterloo shows that when activity in a specific part of the brain is suppressed, our desire for high-calorie foods increases.
The investigators found that when they temporarily decreased activity in the dorsolateral prefrontal cortex – the brain network responsible for self-control – participants evaluated high-calorie snacks more positively, paid more attention to appealing images of such foods, and reported stronger urges to eat them than usual.
“We used a technique called transcranial magnetic stimulation to temporarily suppress the operation of a part of the brain that is involved in inhibition, known as the dorsolateral prefrontal cortex,” said Peter Hall, professor of Public Health and Health Systems and co-author of the study. “This resulted in increased attention to high-calorie food images, as well as stronger cravings for and more consumption of such foods when given an opportunity to sample them.”
The study involved 28 young adult females who reported frequent cravings for high-calorie foods but were otherwise healthy. Eighty-nine percent of the participants consumed more food after real suppressive stimulation than after a placebo stimulation.
“Several lifestyle factors affect the function of the dorsolateral prefrontal cortex,” said Cassandra Lowe, lead author of the study and a PhD graduate from Waterloo’s School of Public Health. “For example, aerobic exercise has been shown to enhance it, while lack of sleep and stress can impair it – so there may be a link between these lifestyle factors and overeating via their impacts on the brain.”