It is the ONLY reason I stopped competing. And it's damed sure too late to start back now.
As for the science, ask yourself this question: do I know any porn stars that squat 600? No, my friend, you don't. And there you have it.
You stopped because of the sex or masturbation or both?
I think the reason why you can't find too many porn stars who squat 600 is more because of the fact that they don't lift weights properly on a proper program, rather than...