Hormones like testosterone, estrogen, and growth hormone supplied in adulthood can increase vitality, energy, libido, and potentially cognition, but also decrease lifespan.

“Uh and then supply those to people in adulthood. Pmenopausal women taking estrogen and or testosterone nowadays quite frequent this happens a lot. Uh men taking testosterone either because they need to quote unquote replace it or they're just trying to augment what they already have. growth hormone. Certainly all of these things dosed appropriately we know will increase vitality, energy, libido, recovery from exercise in some cases maybe cognition etc. But it's also been demonstrated that when you increase growth hormone and IGF-1 that you decrease lifespan.”