>>12502684Biggest danger with gear is polycythemia. When you are on a lot of gear your body ends up producing way too many red blood cells to the point where the percentage of RBCs in your blood far exceeds the percentage of blood plasma and White blood cells. It causes your blood to become thick like syrup and massively increases your risk of heart attack and stroke.
Any doctor in the WWE would know what to look for and at the first sign of high hemocrit would phlebotomize him.