Young blood proven good for old brain

Plasma component restores some of youth’s vibrancy to elderly mice

By Laura Sanders, 10:29 AM May 5, 2014

Vampires knew it all along, but now scientists have discovered that young blood can keep an old brain sharp. Plasma or blood from a young mouse — or even a single protein from plasma — rejuvenates sluggish bodies and minds in a host of ways, three new studies find.

Throughout the ages, people have searched far and wide for an elixir that replenishes the body. “Maybe they were just looking too far,” says Tony Wyss-Coray of Stanford University School of Medicine, coauthor of a May 4 study in Nat...

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