Increasing longevity across age groups is one of the greatest triumphs of both public health and medicine, pandemics notwithstanding. People of every age, from neonates to supercentenarians, are living longer than they used to. Put differently, per 100,000 lives, there are more people of every age alive today than there were in 1941 and in almost every intervening year. The following public health improvements and medical interventions are largely responsible for this good news: