Eternal or even elongated life is an idiotic thing to wish for. You don't want to get old, and then tack on 50 more years of wrinkles and Metamucil. But prolonged youth? Full body youth? More time being young and nubile and beautiful? Absolutely. And the key to that could lie right inside your brain.
Scientists have for the first time found a region of the brain—a signaling pathway in the hypothalamus—that can slow down or speed up the aging process in mice. Their lives and youthful vigor were extended by about 20 percent by a combination of blocking a protein complex with a distressingly long name (nuclear factor kappa-light-chain-enhancer of activated B cells, or "evil magic") and injecting the brain with a hormone ("good magic", or gonadotropin-releasing hormone [GnRH]) that is blocked by that protein.
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