Since 1980, Americans have tended overall to die younger than people in other developed countries; since then, the problem has grown. In 2019, 2/3 of a million more Americans died than would have died if the US had been like those other countries.

Part of the problem is that the US lacks the national universal medical system that other developed countries have. Another part is that the US lacks the welfare system that other developed countries have. Also contributing is the plutocratist politics of the US, which impoverish an increasing fraction of Americans. Other social problems in the US contribute too.