With no prior warning, a heart attack took him to the hospital. He didn't have heart disease in his family; it turns out, his heart attack was caused by poor health. I guess you could say, the unhealthier you are, the weaker you become in this universe. Some places you're weaker when you don't have sex, money, acceleration... but here, it's, bizarrely, good health which makes you strong. I gotta say, it's a strictly bureaucratic universe, with not much variation. No deadly plasma souls about. I found an alternate universe Earth one time, a sick and twisted version where with great power, came no responsibility. There of course were personal sex joints, wealth accumulators, and blistering rocket powers for going to the edges of the universe. The humans couldn't accept it. They felt guilty for not eating their salad.