> Are you.... sure about this? Like how sure are you? What do you think you know? > The human body changes surprisingly fast. Astronauts that stay in outer spa

> Are you.... sure about this? Like how sure are you? What do you think you know? > The human body changes surprisingly fast. Astronauts that stay in outer space for too long can't even walk when they return to earth. That "too long" is like... a year basically. > A "lifetime" of muscle mass will last for how long once someone starts taking androgen blockers then estrogen? You raise a very fair question, but we have sufficient data to really support either position at the moment? Do we have a way of knowing when an individual (or group of individuals) would have lost the ‘benefits’ to make competition truly fair?