Women Have Younger Brains than Men
Just like the body’s metabolism, the brain’s metabolism tends to slow with age. In a study of more than 200 adults ages 20 to 82 with no brain damage or disease, researchers used positron-emission tomography (PET) scans of the brain to measure each individual’s “metabolic brain age.” They found that at any given time, women’s brains are an average of 3.8 years younger than their biological age while men’s brains are an average of 2.4 years older. “This could mean that the reason women don’t experience as much cognitive decline in later years is because their brains are effectively younger,” says one of the study’s authors. “We’re currently working on a study to confirm that.”
EVENING EXERCISE MAY NOT HURT SLEEP
A workout late in the day interferes with your shut-eye—or does it? That’s a common notion, but it’s not the conclusion of a Swiss review of the highest quality studies on the topic. The analysis found that although “vigorous” training (activity that leaves you too breathless to speak) within an hour of bedtime might be bad for your sleep, exercising slightly earlier or more moderately has a neutral to beneficial effect. That’s good news for people who can’t fit a workout into other parts of their day.
Common Cold Virus Exposes Cancer Cells
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Election Day Memories - Stories about voting by the people, for the people
A Convincing Argument When my boyfriend and I were finally old enough to vote in our first presidential election, we spent months debating with one another about our chosen candidates. We were quite persuasive, as we discovered when we got home from the polls and learned that we'd both voted for the other's initial choice.―SHERRY FOX Appleton, WI
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