https://en.wikipedia.org/wiki/Alexander_Bogdanov https://en.wikipedia.org/wiki/Alexander_Bogdanov: "In 1924, Bogdanov started his blood transfusion experiments

https://en.wikipedia.org/wiki/Alexander_Bogdanov https://en.wikipedia.org/wiki/Alexander_Bogdanov: "In 1924, Bogdanov started his blood transfusion experiments, apparently hoping to achieve eternal youth or at least partial rejuvenation. Lenin's sister Maria Ulyanova was among many who volunteered to take part in Bogdanov's experiments. After undergoing 11 blood transfusions, he remarked with satisfaction on the improvement of his eyesight, suspension of balding, and other positive symptoms. The fellow revolutionary Leonid Krasin wrote to his wife that "Bogdanov seems to have become 7, no, 10 years younger after the operation". See also http://www.sciencedirect.com/science/article/pii/S0887796307000478 http://www.sciencedirect.com/science/article/pii/S0887796307...