For the first time since the 1990s, Americans are dying at a faster rate, and they’re dying younger. A pair of new studies suggest Americans are sicker than people in other rich countries, and in some states, progress on stemming the tide of basic diseases like diabetes has stalled or even reversed. The studies suggest so-called “despair deaths”—alcoholism, drugs, and suicide—are a big part of the problem, but so is obesity, poverty, and social isolation.