This combination of images provided by Lida Katsimpardi in May 2014 shows 3-D reconstructions of brain blood vessels in, from left, a young mouse, an old mouse, and an old mouse who was exposed to the blood of a young mouse. Older mice got stronger, exercised longer and performed better mentally after they were injected with blood from young mice, or even just with a substance that's more abundant in younger blood according to three papers published online Sunday, May 4, 2014 by the journals Science and Nature Medicine. (AP Photo/Lida Katsimpardi)
Blood from the young could reverse aging, two research teams agree
By CARL ZIMMER
| The New York Times
First Published May 04 2014 07:21 pm • Last Updated May 04 2014 07:33 pm
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