Millions of Americans take a low-dose aspirin every day in hopes of preventing a heart attack or stroke. But now the American College of Cardiology and the American Heart Association say to stop taking it if you have no history of heart attack or stroke. The new recommendation comes in the wake of a major study showing that a daily aspirin does nothing to prolong life and increases the risk of gastrointestinal bleeding. Experts say doctors should limit aspirin to people at high heart risk who also have a low risk of bleeding.
Nobody likes to get caught in traffic caused by road repairs but a new study in the International Journal of Sustainable Transportationfinds that preventive road maintenance saves a lot of money, time, and pollution. Researchers say performing maintenance when a road is in its early failure stage ends up saving 10 to 30 percent in cost and saves drivers two to five percent in fuel consumption, tire wear, and vehicle repairs. Keeping roads in good shape also cuts greenhouse gases by as much as two percent.
Women stay mentally sharp farther into old age than men typically do, and scientists now think they know why. It all has to do with how the brain burns energy. A study in the Proceedings of the National Academy of Sciences shows that women’s brains burn energy in a much more youthful way throughout adulthood. Women’s brains appear to be about three years younger than men’s of the same chronological age, even in their 20’s, and that difference holds for the rest of their lives.
Binge drinking and prolonged heavy drinking may trigger a permanent change in a person’s DNA, which results in an even greater desire for alcohol. A study in the journal Alcoholism: Clinical and Experimental Research shows that among binge and heavy drinkers, two genes are modified that influence drinking behavior—one that influences the body clock and another regulating the stress-response system. Scientists hope the findings may eventually help identify biomarkers for people at risk for alcoholic changes.
And finally, more than half of all American workers say they’ve suffered from job burnout, but most of them won’t take a “mental health day” away from the job to deal with it. The University of Phoenix survey shows only a third of workers have taken time off for mental health, mostly because they say their companies don’t view it as an acceptable reason to be off work.
The second most common form of dementia is virtually unknown to most people. However, Lewy body dementia affects 1.4 million Americans, with symptoms commonly misdiagnosed as Alzheimer’s disease. Additional symptoms such as hallucinations and uncontrollable shaking make diagnosis and caregiving more difficult, and treatments for Alzheimer’s or psychosis can often be harmful. Experts discuss.
Candy Schulman, daughter of woman who died with Lewy body dementia
Dr. James Leverenz, Director, Cleveland Clinic Lou Ruvo Center for Brain Health and Chair, Scientific Advisory Council, Lewy Body Dementia Association
Synopsis: Scientists have discovered that older research animals can seemingly be made young again with infusions of young blood which reactivate stem cells. Researchers have started to isolate factors in plasma that appear to be responsible, opening the door to possibly rolling back the clock on aging. Experts explain.
Host: Reed Pence. Guests: Dr. Harold Katcher, Professor of Biology, University of Maryland University College and co-founder, Turritopsis Corp.; Dr. Michael Conboy, researcher, University of California, Berkeley; Nelson Yee, founder, XVitality Sciences