Yeah, maybe the only possible way to live that long is to live on a secluded island with pure air, water and organic food, without wars, stress and worries of the modern world. But in that case why live 100+ years if life goes past you?
It is also not conducive to longevity. Michael Jackson slept in a hyperbaric chamber and he led a pretty decent life, take care of yourself, but it did not help him to live long. On the other hand there are homeless people who live 80+Yes, some homeless people can live for a rather long time. It all depends on each person, all the organisms are different and they need different conditions for a normal existence.
not to rip on the dude, I am sure he lived his life the best he could and had his fair share of stories to tell. But lets not throw fact out of the window just for the sake of story. 
