If it seems as though more children are being diagnosed with attention deficit hyperactivity disorder (ADHD), it's not your imagination. The numbers really are going up.

It's no secret that regular physical activity can contribute to being healthy as you age. But many might not realize that it's never too late to start.

Broken bones happen for many reasons. From weak bones to accidental falls and lifestyle choices, researchers recently explored these reasons.

Barrett's esophagus occurs when cells of the esophagus change over time to resemble cells of the intestine, and the condition can put patients at risk of cancer. Researchers have found that one type of medication may lower this risk.

Because tobacco use has been declining in the US over recent years, cancers found in the mouth have also been on the decline.

Infections from MERS are still being discovered at a slow but steady pace. Several new cases have been reported in the Middle East this month.

If a woman has had a hysterectomy, does she still need to have Pap smears? It would stand to reason that she doesn’t since the test screens for cervical cancer and a hysterectomy removes the cervix in nearly all of these procedures.

Chest pain can be a sign that the heart may not be working properly. Could the characteristics of that pain point to different diagnoses for men and women?

Children who are obese tend to be more likely than their peers to remain obese as adults. So, it's helpful to know which children are at higher risk for obesity.

Only about one in four esophageal cancer patients is eligible for surgery; the rest have an advanced disease that surgery can’t touch. But the operation is complex and may leave patients with life-altering symptoms.