Here’s a brain teaser: Surprising study shows reduced neuronal activity extends life
Aging, of course, affects the brain. But the brain seems to affect aging, too: Lower levels of neuronal firing increase longevity, a new study found.
by Sharon Begley
Oct 16, 2019
3 minutes
Say this about the kinds of molecular mayhem that we know underlie aging: Mechanisms like whether the ends of chromosomes fray (bad) and whether genes’ on-off status breaks down (really bad) at least sound like plausible ways to impair vital organs, from skin to brains and hearts, and produce the whole sorry mess known as aging.
On Wednesday, scientists reported a driver of aging that, in contrast, even the lead researcher diplomatically calls “counterintuitive”: neuronal activity. Aging, of course, affects the brain. But the brain seems to affect aging, too, they found: In creatures from worms to mice
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