Americans are smoking less than they did in the early 1990s, thanks to a number of efforts. But there are still quite a few smokers among certain groups in the US.

Depression, autism and schizophrenia have very different symptoms. But new genetic research suggests that they may share a root cause.

When walking the dog, it often seems easier to chat with strangers. Researchers thought animals might also help kids who had autism spectrum disorder (ASD) with their social skills.

If you search hard enough, the Internet has what you're looking for. But people with anorexia may not have to look too hard to find videos promoting their eating disorder.

Crossing the line between one or two drinks to three or four isn’t difficult, but it may not be healthy. Researchers have found that many people have been drinking too much.

Hormones are often to blame when women's moods are swinging. With medicines to balance hormones and stabilize mood, new research suggests it's okay to combine the two.

One of the best ways to reduce risk of catching the flu is getting a flu shot. However, all vaccines carry some small risks. Researchers continue to look for possible evidence of these risks.

Some patients with attention deficit hyperactivity disorder (ADHD) may be concerned that their medication may affect their heart health. So, researchers set out to see if taking ADHD medicine was linked to serious heart problems.

Preventing substance abuse in teens needs to start early. Whether the message comes from school, from TV or the radio, teens need to know the risks involved with substance abuse.