Two big problems in antiquity: women lived much shorter lives than men because of death in childbirth, and they had many more children, increasing their chances of dying. Second, infectious disease. Men who had good hygiene and nutrition could live long lives, even thousands of years ago.
Antigonus, one of Alexander the Great's generals, was killed in 301BC during the Battle of Ipsus. He was 81 years old. Perhaps not as fit and hale as in his youth but at least he went down swinging!