The rejuvenating effect of young blood has been demonstrated in strange, draculoid experiments first done 150 years ago. Two genetically compatible animals, one young and one old, are sewn together. With their circulatory systems connected, the old animal gains access not only to the younger animal’s blood but also to the detoxifying and metabolizing function of its organs. The state is known as heterochronic parabiosis.
"Giving Young Blood to Older Animals Raises Tantalizing Possibilities for People" is from the April 14, 2017 Health & Science section of The Washington Post. It was written by David Brown and narrated by Sam Scholl.