Add Yahoo as a preferred source to see more of our stories on Google. By some measures, young adults in the U. S. are healthier -- or at least more health-conscious, judging by their spending on wellness goods and services, as well as social media posts -- than previous generations.

Cancer deaths are falling among young Americans -- except for one terrifying outlier. Over the past 30 years, it has surged to become the top cancer killer of people under 50, overtaking breast, lung and brain cancers, as well as leukemia, a new analysis found.