Turns out they boy who died after a dunk attempt died due to a heart condition rather than his failed dunk attempt.  I wonder if he wasn't an athelete if his heart problem would have been better or worse.  Lower physical activity may have lessened chance of his heart overworking, but less physical activity may have meant his body was less healthy and he may have succumbed earlier to a heart problem... I've always believed in the benefits of physical activity, but could it be that physical activity may be a negative thing in some cases?