The amount of calories kids got from ultraprocessed foods like ready-to-eat snacks rose from 61% to 67% of their total caloric intake from 1999 to 2018.

A new report indicates many older Americans are better able to handle daily care, particularly women. But, there are disparities.

An expert breaks down why the United States is facing a lumber shortage that's causing prices to skyrocket, including when we might expect it to end.

Even though wait times for COVID test results have dropped in the United States, they still don't come back fast enough to be useful for contact tracing.

While the number of college-age young adults drinking has fallen, the number using marijuana, or both marijuana and alcohol, is up, researchers say.

A study in Washington state suggests legalization of marijuana has slowed a reduction in teen use. They may perceive it as less harmful.

The pandemic has worsened the gender gap among dual-earner parents. Moms have less time to work, but dads tend to clock a full 40-hour week.

Just 14% of Americans say they are "very happy" even though 80% say they're feeling OK about their family's finances, a new survey on happiness finds.

We know alarmingly little about a third of the chemicals produced and sold around the world, a new estimate of "chemical diversity" highlights.

Political polarization in the US has gotten worse over the last four decades at a faster rate than in other major democracies, researchers find.