Could 'young blood' make you smarter?

MIAMI - DECEMBER 08:  A U.S. Army soldier of the 212th Combat Support Hospital holds a blood sample drawn from a trauma patient during their 24-hour shift at Jackson Memorial Hospital's Ryder Trauma Center December 8, 2006 in Miami, Florida. The U.S. Army Trauma Training Center at the hospital gives medics heading into combat operations the training necessary to work on the battlefields in Iraq and Afghanistan. Miami's Ryder Trauma Center was chosen because it provides access to the volume and severity of injuries needed to mimic those experienced on the battlefield. Among the goals of the program is to foster teamwork among the medics as they participated in an intense, 14-day program. The rotation culminates with a 24-hour exercise where the unit essentially takes over operations of the Ryder Trauma Center.  (Photo by Joe Raedle/Getty Images)

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    Could 'young blood' make you smarter?

"Young blood" may one day have the potential to make us faster, stronger and smarter. But for now it's only helping mice.