Well if you wanna be mr O for that many years this seems to be the prize.....maybe it's worth to him. Power to him if that's the case. He never gotta work no more for the rest of his life, that's for sure. I dunno why he wanna keep abusing his wasted body again and again.....guess it's all he knows. 
It's his body.
Likely as you said he don't have to go work ever again.
Seems to me He enjoyed his hard training & still enjoys
His training -- if he wants to take some PED's - Up to him.
Why do people - continue to use Rec drugs / drink alcohol / smoke etc
When they are at deaths door...
They likely are addicted.
Some of the Biggest Drug abusers are Doctors -- as they have easy access to them,
And you would expect them to know better.