the aberage male lives to be 76, so your grandfather lived longer than that. I know it hurts, I lost 2 of my relatives witin 2 weeks of each other in 2006, one we knew was dying, the other took us completely by surprise. one of them , my uncle had brian cancer, and my aunt had complications from gastrobypass surgery. Both were in their late 40s shhe was 46, he had just turned 49. needless to say that fall was a huge downer..