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Posts tagged “gerontology

How long do you want to live? Your expectations for old age matter

aging gracefully

aging gracefully

Why do some people want to live a very long time, while others would prefer to die relatively young? In a latest study, a team of researchers investigated how long young and middle-aged adults in the United States say they want to live in relation to a number of personal characteristics. The results showed that more than one out of six people would prefer to die younger than age 80, before reaching average life expectancy.

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Embryonic gene Nanog reverses aging in adult stem cells

aging

aging

The fountain of youth may reside in an embryonic stem cell gene named Nanog. In a series of experiments, the gene kicked into action dormant cellular processes that are key to preventing weak bones, clogged arteries and other telltale signs of growing old. The findings also show promise in counteracting premature aging disorders such as Hutchinson-Gilford progeria syndrome.

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Some aging treatments shown to have opposite effects on males and females

sex differences in aging

sex differences in aging

What helps her live longer might be harmful to him, according to a new study that may shed light on how and why organisms age. Analyzing years of previous research on dietary and pharmaceutical tests on flies and mice, researchers showed that aging interventions can have opposite effects on mortality rates in males versus females.

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Study of 83,000 veterans finds cardiovascular benefits to testosterone replacement

Study of 83,000 veterans finds cardiovascular benefits to testosterone replacement

A Veterans Affairs database study of more than 83,000 patients found that men whose low testosterone was restored to normal through gels, patches, or injections had a lower risk of heart attack, stroke, or death from any cause, versus similar men who were not treated. The study also found that men who were treated but did not attain normal levels did not see the same benefits as those whose levels did reach normal.

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Omega-3 supplements and antioxidants may help with preclinical Alzheimer’s disease

Alzheimers

Here’s more evidence that fish oil supplementation and antioxidants might be beneficial for at least some people facing Alzheimer’s disease. A new report describes the findings of a very small study in which people with mild clinical impairment, such as those in the very early stages of the disease, saw clearance of the hallmark amyloid-beta protein and reduced inflammation in neurological tissues. Although the findings involved just 12 patients over the course of 4 to 17 months, the findings suggest further clinical study of this relatively inexpensive and plentiful supplement should be conducted.

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Cell density remains constant as brain shrinks with age

Brain cell density MRI

Brain cell density remains constant with age among cognitively normal adults. Image credit goes to: Dr. Keith Thulborn

New, ultra-high-field magnetic resonance images (MRI) of the brain by researchers at the University of Illinois at Chicago provide the most detailed images to date to show that while the brain shrinks with age, brain cell density remains constant. The images provide the first evidence that in normal aging, cell density is preserved throughout the brain, not just in specific regions, as previous studies on human brain tissue have shown.

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(More) bad news for Vets: PTSD linked to accelerated aging

Veterans suffer from PTSD

Vietnam Vet: A Hero’s Welcome
Image credit goes to: Mike Cherim via Getty Images

Before PTSD had a name there was shellshock. It was mysterious and much like today, not everyone showed symptoms so — for the most part — it was written off. In recent years however, public health concerns about post-traumatic stress disorder (PTSD) have risen significantly, driven in part by affected military veterans returning home. While this has opened the door for better care for people suffering from PTSD, it has also lead to some startling revelations about the extent of damage. New research that was just released, sad to say, doesn’t bode well for people with PTSD either.

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The “successful aging” debate

aging

We see it everyday in advertising, turn back the clock, reverse aging — look, feel, and be younger. With all these standards, how do you define aging, or more importantly successful aging. Scholars have long debated what successful aging is, how to measure it, and how to promote it. But researchers are now laying the groundwork for building consensus on the topic — while pointing out that the answer may differ among academics and the general public, as well as across populations and demographic groups.

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