Infusions of youthful blood led older mice to live 6 to 9 percent longer, a new study found.
A team of scientists has extended the lives of old mice by connecting their blood vessels to young mice. The infusions of youthful blood led the older animals to live 6 to 9 percent longer, the study found, roughly equivalent to six extra years for an average human.
While the study does not point to an anti-aging treatment for people, it does hint that the blood of young mice contains compounds that promote longevity, the researchers said.