A surgeon by the name of Serge Voronoff, will live on in medical infamy for performing transplants which, while at the time (late 1800s) were lauded as genius, would eventually disgrace him.
Voronoff’s hypothesis was this: hormones, like testosterone produced by the testes, would reverse aging by a process he called “rejuvenation.” One of his first experiments used himself as a test subject. He injected ground up dog and guinea pig testicles under his own skin, but was disappointed when this did not result in any verifiable effect. He reasoned that living grafts of testicular tissue, rather than injections, would have a more dramatic and lasting rejuvenation effect. (READ MORE)