Guy had crazy build and good genetics just his body couldn't take the years of abuse to beat others with the same level of genetics were more resilient insides.
Then does he really have good genetics then? lol if he can’t take all the gear with minimum side effects, his body shut down. Someone like Ronnie, Jay, branch, Phil, Ruhl, could take absurd amount for years and seem to be ok
Flex wheeler was the same, body couldn’t hold all the abuse and failed on him