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Showing posts with the label aging

Two New Discoveries to Explain Why Exercise Is Good for You

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Have you noticed that so many elderly people seem frail, walk slowly, and seem to lack energy? If this applies to you, noticing it is unavoidable. These problems are preventable. For 25 years, I jogged at least a mile and a half three times a week. This was crucial for helping me stop smoking. I don’t know why, except that I could not smoke and jog at the same time. Also, the 15-30 minute recovery time reminded me just how bad the smoking had been for my health. Why did I quit jogging? The jogging messed up my joints. So, I took up swimming, but since I sink like a lead mannequin, that is just too much work. So now, I joined a gym, where I use the elliptical, treadmill, and muscle-building machines. This environment helps because I have companions in my discomfort, and occasionally I get the satisfaction of comparing myself to the few “90-pound weaklings” that show up. We have known for many years that exercise is good for you, especially as you get older. Known benefits of exercise in...

Aerobic Exercise Makes You Smarter

On several occasions, I have written about the anti-aging beneficial effects of exercise. New studies, confirm earlier findings of exercise benefit. Now, a new study shows that exercise reduces levels of the major inflammatory chemical, interleukin-6, and an associated enhancement of neural activity in the brain circuitry used to encode information and form memories. In response to earlier studies by others showing that exercise improves mental function, a team from mostly German universities studied the effects of exercise on 32 subjects aged 52 to 71 years old. They were particularly interested in memory because prior studies by others made it clear that age usually impairs memories of names and faces, situations and events, which are categorized as episodic memory. Tests of recall of episodic memory show marked age decrements in many subjects, even if they are given reminder cues. Other researchers had shown that exercise, particularly aerobic exercise, reduces decline of episodic m...

Scoring Wisdom

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Most everybody believes that one becomes wiser with age and experience. People obviously vary across a wide spectrum of foolish to wise. We all have opinions about our own degree of wisdom compared to others, but is there an objective way to measure wisdom? A group of researchers at U.C. San Diego believes that wisdom can be objectively measured. They tested their ideas on 524 adults, aged 25-104 years, selected from an on-going longitudinal investigation called the Successful Aging Evaluation (SAGE) study. The study population involved near equal numbers of males and females, with more than three-fourths claiming to be non-Latino white. A majority had some college education. The study was funded by three grants from the National Institute of Mental Health, the Veterans Administration, and the Stein Institute for Research on Aging. The researchers developed a series of questions that focused on physical, cognitive, and psychosocial aspects of successful aging across the adult lifespan....

Aging Shrinks the Brain

In most people, their brains get smaller as they age. It is not so much that neurons die but that their terminals and synaptic junctions shrivel. A known cause is the over-secretion of cortisol by stress, but perhaps there are also other age-related causes. However, shrinkage with age is not inevitable. Certain people are "super-agers," defined as adults over 80 with memory at least as good as normal middle-aged adults. A usually reliable index for decline in memory ability is the degree of brain shrinkage, specifically cortical volume. Brain-scan studies show that super-agers have thicker layers of cortex than do others of the same age. Thus, their cortex has not shrunk as much as average elderly or they had more to start with. It is possible that something about the lifestyle of super-agers protected them from brain atrophy. It is not convenient to know how much cortical volume the elderly had in their youth. But the second option has been tested in a study that compared th...

Is Your Brain Older Than You Are?

"You are as old as you think you are," the saying goes. Well, not quite. You, that is the inner you in your brain, is as old as your brain is. But your brain age may or may not correlate with chronological age. The other day at my gym workout, I again saw a young black guy, built like Captain America, whose workout schedule sometimes overlaps with mine. We had not met, and out of the blue he came up to me and said, “You are my inspiration. You inspire me to be able to work out like you when I get your age.” Wow! I inspire somebody! Then my balloon popped when I realized that he knew I was old just by looking at me. My body may not look like I’m 83, but I guess hair loss and the lines in my face betray me. The point of this story is that the bodily organs do not have the same rate of aging. Skin ages rather conspicuously in most older people. Specific organs may age at different rates depending on what they have been exposed to, for example skin and sun, liver and alcohol, lun...

The Best Years of Your Life

When I was young, there was no respect for youth. Now there's no respect for the old. I missed it both times!                                 Milton Berle (or so he claims) When you were a teenager, were you ever told, "Enjoy this time, it's the best years of your life?" What a stupid thing to say. Youth is wasted on the young, and for most people, youth is hardly the best years of life. Ours is a youth-obsessed culture, demanding living in the now with youthful gusto. Who has time for lessons learned and the wisdom that comes with age? Here's one example that only older people know: All this excitement about legalizing marijuana is being fomented by people who know nothing of the exhaustive social and scientific marijuana research conducted in the 1930s and the harmful biological effects in the 1970s.  Older scholars know about ...

Music Effects on Cognitive Function of the Elderly

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Whether the music is orchestral, rock, country, or jazz, most seniors like to listen to some kind of music. Music can soothe or energize, make us happy or sad, but the kind we like to hear does something that can be positively reinforcing or otherwise we would not listen to it. As my 80-year-old jazz trumpeter friend, Richard Phelps, recently said at his birthday party, "Where there is life there is music. Where there is music, there is life." Relatively little research has been done on the effects of music on brain function in older people. But one study recently reported the effects in older adults of background music on brain processing speed and two kinds of memory (episodic and semantic). The subjects were not musicians and had an average age of 69 years. The music test conditions were: 1) no music control, 2) white noise control, 3) a Mozart recording, and 4) a Mahler recording. All 65 subjects were tested in counter-balanced order in all four categories. The music was ...

Health Benefits of Resveratrol: New Plaudits

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Joe: My doctor told me to give up drinking, smoking, and fatty foods. Sam: What will you do? Joe: I think I’ll give up my doctor. I try not to get too excited about memory benefits of supplements, because too often the claims are not substantiated by studies that are well controlled and peer reviewed. I now think resveratrol may be one of the few supplements that benefits brain function. When I wrote my first blog on research on resveratrol benefits for brain function and memory, there were over 2,000 scientific papers. [1] Don't worry; I am only going to tell you about a few studies. Resveratrol is an active ingredient in red wine. This compound has been credited for explaining why red-wine drinkers in France, who drink more wine than most people, are healthier than would be predicted by their lifestyle of little exercise and eating lots of cheese. The problem is most studies suggest you would have to drink a 100 or more glasses of red wine a day to get much resveratrol effect (a...

Does Humor Make You Live Longer?

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I just attended a “Laughter is Good Medicine” seminar put on by a local hospital. The speaker pointed to evidence showing that laughing has such good effects as: ·          Reduce blood pressure ·          Lower blood glucose ·          Dull pain ·          Alleviate stress and anxiety ·          Improve feeling of well being and it even burns substantial calories. I suspect humor also improves longevity, though I only have anecdotal and presumptive evidence for that. But the evidence seems hard to dismiss. Think about how long so many classic stand-up comedians of the preceding generation lived. Most of these comedians were actively performing right up to their last days. Here is a listing of comedians most people in my generation will recognize and their age when they finally died. Bob Ho...

Older People Make Better Decisions

In an earlier post, I reviewed research showing that seniors compensate for any loss of memory ability by having developed learning and memory schemas over the years. Such schemas are ingrained strategies and ways of efficient learning that improve with experience and age. Now I have come across recent research that shows another age-developed skill: improved decision-making ability. Teenagers are notorious for poor decision-making. Of course that is inevitable, given that their brains are still developing and they have had relatively little life experience to show them what works and what doesn’t. Unfortunately, what doesn’t work often has more emotional appeal, and most of us at any age are more susceptible to our emotions than to cold, hard logic. Seniors also are prone to poor decision-making if senility has set it. Unscrupulous people take advantage of such seniors because a brain that is deteriorating has a hard time making wise decisions. In between teenage and senility is when ...

Is Lack of Sleep Causing Your Brain to Shrivel?

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Snore a lot? Get up frequently at night to urinate? Wake up at 2 A.M. with bright ideas or worries? All these disruptions of sleep are common and more so as we get older. Does it matter? Well, of course such awakenings disrupt our sleep, and maybe it is just inconvenient. But disrupted sleep not only is more likely with age, it may promote deterioration in mental functioning. A recent study compared the effects of sleeping behavior in young adults and seniors. The study involved assessing the memory after sleeping of 18 young adults in their 20s and 15 older adults in their 70s. The subjects were tested on 120 word sets before they went to bed, and an EEG machine monitored their brain activity while they slept. Upon awakening, they were tested once again on the word pairs, but this time they took the tests while undergoing functional  magnetic resonance imaging (fMRI) scans. The quality of deep sleep among the older adults was 75 percent lower than the younger ones, and their memor...

What Happens to Aging Brain

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Deterioration of the brain sneaks up on most of us. The first clue might be hearing loss, especially in the higher frequencies. We may be forced into bifocals, even trifocals. But the most serious signs of deterioration occur in the brain. As we age, our reflexes slow. We walk and act slower. We even talk slower. Our memory starts to fail, especially the short-term form of memory ability that is so crucial for learning new things. Brain-scan technology reveals aging can cause the brain to shrink. Nerve tracts in the brain shrivel, making the cerebrospinal fluid cavities larger and even leaving gaping holes in the brain. Shriveling occurs in the neuron terminal branches that form the contact points among neurons. People may lose 40% or more of dopamine neurons causing Parkinson’s disease. These are brutal truths. Whole societies are being affected in major economic and social ways in countries where the population is aging rapidly, such as Japan (23% over 65), Germany (20.5%), Italy (20...

10 Ways to Slow Mental Decline with Age

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Deterioration of the brain usually sneaks up on us. By the time we realize it, it may be too late. As we get older, we more frequently start asking questions like “Where did I put the car keys?” “What was it I was supposed to get at the store?” “What’s your name again?” Most of us have had to ask questions like this, and it seems to happen more often as we get older. We can’t turn back our biological clock, but there are things seniors can do to reduce the rate of their mental decline. The time to act is while you are still relatively young.  I have made a career out of studying brain and behavioral research literature, and I know some of this research is relevant to everyday memory problems. I have summarized these findings in my new book, Memory Power 101 (298 pages, $14.95, Skyhorse.com), and keep readers up to date with my blog (thankyoubrain.blogspot.com). As people age, beginning in early middle age, many of them experience a brain deterioration that progresses silently over...