Get ready for the newest (and potentially creepiest) anti-aging fad: injections of young blood. A new study by a Stanford University scientist found that the brains of older mice were rejuvenated—and memory increased—when their bodies were injected with blood from younger mice. After the injections, the number of stem cells in their brains also showed an increase, along with a 20 percent rise in brain-cell connections, which are linked to memory. The lead scientist on the study said that the technique might one day be used to reverse signs of aging in humans, such as slowed memory and Alzheimer’s.
