Tag Archives: aging

Avoiding Dehydration – Tufts

As a senior, I want to stress to you that we seniors are more vulnerable to dehydration than our younger associates.

The hot summer months are upon us, but sweating in the sun is not the only factor that raises risk for dehydration. This potentially dangerous drop in body fluid affects everything from blood pressure to the brain, so knowing the causes, signs, and symptoms of dehydration—as well as how to avoid it—is critical.

Dehydration Basics: Any situation that involves either not taking in enough fluid or losing too much fluid can cause dehydration. “We don’t drink enough if fluids are unavailable, or if we lack an adequate thirst response,” says Roger Fielding, PhD, director and senior scientist at the Nutrition, Exercise Physiology, and Sarcopenia Laboratory at Tufts’ Human Nutrition Research Center on Aging. “We lose fluid through sweat, diarrhea, vomiting, or blood loss. Medications like diuretics (water pills), or medical conditions like uncontrolled diabetes, can also cause too much water to leave the body. These factors, alone or in combination, can lead to dehydration.”

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Walking: Key To Staying Active and Independent

Did you get your 10,000 steps today? Many people have adopted this daily walking goal to obtain the recommended amount of physical activity. The 10,000-steps-a-day number comes from the Japanese brand name of a pedometer manufactured in the 1960s, the “10,000 steps meter.” In the Fitbit era, counting daily steps remains appealing to many people as a source of motivation.

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In the US, adults are urged to get the equivalent of 150 minutes per week of moderate intensity exercise. Walking is a popular way to meet those recommendations, particularly in older adults or people who are relatively physically inactive.

Although 10,000 steps is a worthy challenge, aiming for more exercise than you normally get—unless you are one of the few who regularly trains for marathons or triathlons—comes with benefits. Any amount or type of physical activity adds to your daily goal. Regularly taking the stairs instead of the elevator, or parking farther away from your destination, can make a measurable improvement in your health.

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Filed under aging, Exercise, exercise and brain health, exercise benefits, successful aging, walking

The Care and Feeding of Your Immune System – Tufts

There seems to be no limit to the promises on the Internet for foods and dietary supplements that allegedly “boost” or “support” your immune function. There’s more than a grain of scientific truth in it, and the prospect of enhancing immune function with nutrition is a busy area of research—some of it by scientists at Tufts’ Human Nutrition Research Center on Aging (HNRCA) and Friedman School of Nutrition Science and Policy.

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We know that nutrient deficiencies weaken the immune system and leave people vulnerable to illness. But if your nutrient intakes are adequate, can certain foods and nutritional supplements still improve immune function?

There is no definitive answer yet to this question—although there is reason for optimism. “I would not say it’s entirely an open question,” says Simin Nikbin Meydani, PhD, senior scientist and director of the Tufts’ HNRCA Nutritional Immunology Laboratory. “We do have promising evidence from animal studies and some human clinical trials that specific nutrients might be able to help strengthen an aging immune system. But we need additional research.”

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Robotic Cats ‘Purr-fect’ Companions for Seniors Isolated Due to COVID-19

Don’t knock it till you’ve tried it Department.

In the wake of widespread social distancing and isolation due to the COVID-19 pandemic, people who have pets have gained a greater appreciation for the unconditional love and companionship they provide. However, for many older adults, especially those living with Alzheimer’s disease and/or related dementias (ADRD), caring for a pet is difficult. Moreover, because of the pandemic, people with ADRD and their caregivers remain alone for extended periods of time.

Researchers from Florida Atlantic University’s Christine E. Lynn College of Nursing provide the   “purr-fect” solution to comfort and engage older adults with ADRD – interactive robotic cats. Designed to respond to motion, touch and sound, these interactive robotic pets offer an alternative to traditional pet therapy. Robotic cats and dogs are usually given to people with ADRD, but data has shown that using these pets to decrease social isolation for older adults is highly successful.

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Exercise may slow seniors’ brain aging 10 years

Exercise in older people is associated with a slower rate of decline in thinking skills that occurs with aging. People who reported light to no exercise experienced a decline equal to 10 more years of aging as compared to people who reported moderate to intense exercise, according to a population-based observational study published in the online issue of Neurology®, the medical journal of the American Academy of Neurology.

“The number of people over the age of 65 in the United States is on the rise, meaning the public health burden of thinking and memory problems will likely grow,” said study author Clinton B. Wright, MD, MS, of the University of Miami in Miami, Fla., and member of the American Academy of Neurology. “Our study showed that for older people, getting regular exercise may be protective, helping them keep their cognitive abilities longer.”

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Insomnia May Predict Depression in Seniors – Study

Older adults with depression may be at much higher risk of remaining depressed if they are experiencing persistent or worsening sleep problems, according to a study from researchers at Johns Hopkins Bloomberg School of Public Health.

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The researchers, who published their findings online April 30 in the journal Sleep, analyzed data from almost 600 people over 60 years old who visited primary care centers in the Northeast U.S. All patients met clinical criteria for major or minor depression at the outset of the study. Continue reading

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Cognitive Health and Older Adults- NIA

Eat less; move more; live longer. Turns out the National Institute on Aging shares my sentiments on these actions.

Cognitive health—the ability to clearly think, learn, and remember—is an important component of brain health. Others include:

  • Motor function—how well you make and control movements
  • Emotional function—how well you interpret and respond to emotions
  • Sensory function—how well you feel and respond to sensations of touch, including pressure, pain, and temperature

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This guide focuses on cognitive health and what you can do to help maintain it. The following steps can help you function every day and stay independent—and they have been linked to cognitive health, too.

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New Tool Measures Pace of Aging Across Life Course

A study just released by Columbia University Mailman School of Public Health researchers is reporting a blood-DNA-methylation measure that is sensitive to variation in the pace of biological aging among individuals born the same year. The tool—DunedinPoAm—offers a unique measurement for intervention trials and natural experiment studies investigating how the rate of aging may be changed by behavioral or drug therapy, or by changes to the environment. Study findings are published online in the journal e-Life.

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“The goal of our study was to distill a measurement of the rate of biological aging based on 12 years of follow-up on 18 different clinical tests into a blood test that can be administered at a single time point,” says lead author Daniel Belsky, PhD, assistant professor of epidemiology at Columbia Mailman School and a researcher at the Butler Columbia Aging Center.

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Number of steps per day more important than step intensity

I have written repeatedly about the benefits of walking, calling it the ‘Cinderella of the exercise world.’ Now, according the the National Institutes of Health (NIH), it seems that quantity equals quality in walking.

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  • Adults who took 8,000 or more steps a day had a reduced risk of death over the following decade than those who only walked 4,000 steps a day.
  • Step intensity (number of steps per minute) didn’t influence the risk of death, suggesting that the total number of steps per day is more important than intensity.

Doctors often recommend walking as an easy way for inactive people to ease into better health. Taking 4,000 or fewer steps a day is considered a low level of physical activity. A goal of 10,000 steps a day is commonly cited, but recent studies have shown that health benefits accrue even if fewer than 10,000 steps are taken daily. Continue reading

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Why life can get better as we age — study

As an 80 year old, I have to confess I read about this study with a great deal of personal interest and identification.

People say life gets better with age. Now research suggests this may be because older people have the wisdom and time to use mindfulness as a means to improve well being.

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Healthy aging researchers at Flinders University say certain characteristics of mindfulness seem more strongly evident in older people compared to younger people – and suggest ways for all ages to benefit.

“This suggests that mindfulness may naturally develop with time and life experience,” says behavioral scientist Associate Professor Tim Windsor, who co-authored a recent study based on an online community survey of 623 participants aged between 18 and 86 years. Continue reading

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Exercise and an aging brain – Infographic

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March 25, 2020 · 12:07 am

The Anti-Aging Pill – UC

At the age of 80, I am interested in anything that might add a few to my remaining days. For that reason, this article in the Alumni Magazine of the University of Colorado piqued my interest.

In 1935 in upstate New York, a little-known animal husbandry researcher named Clive McKay looked into the rat cage in his lab and found an unexpected window into the Fountain of Youth.

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Conventional wisdom at the time held that the more animals were fed, the better they’d fare. But McKay noticed something different: Long after the well-fed rats began to show signs of aging, those on a nutrient-dense but super-low-calorie diet retained a silky sheen to their fur, remained alert and agile and lacked the age-related health problems of their more gluttonous peers. In the end, the calorie-restricted mice also lived about 300 days longer — nearly a third of a lifetime in rat years.

Fast forward to 2020, and studies in everything from fruit flies and worms to monkeys and people have confirmed that sharply restricting calories (by 20-40 percent) while maintaining essential nutrients can fend off age-related diseases and, in some cases, extend lifespan. The problem: People like to eat, so almost no one is willing to do it. And it can be dangerous. Continue reading

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How about some good luck foods for Friday the 13th?

Feeling blue on Friday the 13th? Perhaps you are triscadecaphobic, which is to say, fearful of Friday the 13th.

The publication Environmental Nutrition offers the following 5 foods that are super nutritious and might bring you good luck at least in terms of your general health.

Amazing avocados, is their first offering. “Ounce for ounce, they contain more blood-pressure lowering potassium than bananas. Avocados are rich in good-for-you monounsaturated fats, and cholesterole-lowering beta-sitosterol and cancer-protective glutathione, along with Vitamin E, folate, vitamin B6 and fiber.”

Brain-boosting blueberries come in second. “These little blue marvels are the antioxidant leaders, plump and nearly 4 grams of fiber per cup and a good dose of vitamin C. They also have cancer-protective ellagic acid, and may boost your brain health and vision.”

Anti-cancer Brazil nuts come in third. “This hearty tree nut is a ‘trigger food’ that may cause cancer cells to self-destruct. It’s a super source of selenium, a promising anti-cancer trace mineral that also promotes DNA repair and boosts immunity. Just two medium nuts contain enough selenium to perhaps reduce the incidence of prostate, colon and lung cancers.”

Good old Broccoli is number four. “Here’s an easy way to get two cancer-blockers that modify natural estrogens into less damaging forms and increase the activity of enzymes that fight carcinogens. Aim for three servings a week of broccoli or its cruciferous cousins.”

Number five is Butternut Squash. “This tasty fruit (yes, fruit) is an exceptional source of beta-carotene, the antiooxidant tyour body converts to vitamin A. But it’s also an overlooked source of bone-building calcium.”

So, look on the bright side and focus on the great nutritional benefits you can derive from these five super foods and forget about the fact that today is Friday the 13th. Just don’t walk under any ladders.

Tony

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Early Exercise Habits May Lead to Better Adult Physical Fitness, BMI Performance

How many times do we have to say it? Eat less; move more; live longer. Here, it is supported by a new study presented at the Association of Academic Physiatrists Annual Meeting in Orlando.

Good exercise habits formed in adolescence correlate positively with exercise habits in adults, and adults with good exercise habits have better physical performance and appropriate body-mass index scores for their age, according to the study.

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Regular exercise habits can lead to better physical fitness and mental health in people of all ages. However, research shows that people in the United States and Canada tend to exercise less as their age increases, and the most significant drop-offs in exercise habits take place during the teenage and early adult years. For this retrospective study, researchers in Taiwan wanted to know if exercise habits formed in adolescence could affect physical fitness in later adulthood, and to assess the relationship between adolescent and adult exercise habits and its influence on later physical fitness. Continue reading

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Filed under aging, Exercise, exercise benefits, exercise frequency, sarcopenia, successful aging, Uncategorized

What are the benefits of lion’s mane mushrooms?

Truth be told I never heard of Lion’s mane mushrooms before today. However, this article in Medical News Today piqued my curiosity. I would like to hear from any readers who may have had experience with the mushrooms in one form or another.

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Lion’s mane mushrooms (Hericium erinaceus) are white, globe-shaped fungi that have long, shaggy spines. People can eat them or take them in the form of supplements. Research suggests that they may offer a range of health benefits, including reduced inflammation and improved cognitive and heart health. Continue reading

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Filed under aging, aging brain, anti inflammatory, anti oxidant, diabetes, immune function, immune response, lion's mane mushrooms, Uncategorized

Neighborhood features affect cognitive function in seniors

As a senior citizen who has had family members suffer from dementia and Alzheimer’s Disease, I want to know everything I can about aging and cognition, so this study from Florida Atlantic University piqued my interest.

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The neighborhood environment may positively or negatively influence one’s ability to maintain cognitive function with age. Since older adults spend less time outside, the neighborhood environment increases in importance with age. Studies suggest physical aspects of the neighborhood such as the availability of sidewalks and parks, and more social and walking destinations, may be associated with better cognitive functioning. Beneficial neighborhood environments can provide spaces for exercise, mental stimulation, socializing and reducing stress. To date, few studies have examined how the neighborhood’s physical environment relates to cognition in older adults. Continue reading

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