I'm pretty sure all the "substances" in his body have resulted in a form of live mummification, that is the only reason I can explain his longevity with the lifestyle he has lived....
“Keith Richards says you shouldn’t do drugs.......Keith, we can’t do any drugs because you’ve already done them all, there’s none left. We have to wait until you die so that we can smoke your ashes.” - Dennis Leary
Was well known that the Beatles and the Stones were big Python fans but it only came out a few years ago that Elvis was also a huge fan.