Rejuvenating Effects of Blood Transfusions on Aging

Research has shown that rejuvenating blood transfusions can have remarkable effects on aging. Experiments involving grafting muscles between old and young rats revealed that old muscles in young rats regained strength and regeneration abilities, while young muscles in old rats lost renewal capacity. Culturing old muscle stem cells in the blood of young animals had a rejuvenating effect, indicating the presence of vitalizing factors in youth. The circulation of bloodborne factors from young animals into old ones resulted in rejuvenation of age tissues in various organs, including the brain, heart, and muscles.