A simple selfie could hold surprising clues to your overall health and longevity, especially among people with cancer.

Many people with depression don't respond to existing treatments, and scientists think it might be because of the many different routes people can take to arrive at the same depressive symptoms.

ADHD medication was tied to a 25% lower mortality risk in a JAMA Network Open review examining nearly 16 million people across three continents.

A little-known treatment for heart failure, developed more than half a century ago and refined in the '70s, may have legs as a potential therapy for Alzheimer's patients.

Guinea-Bissau police said hepatitis B vaccine doses were taken as part of an investigation.

A seemingly harmless routine practiced by as many as a third to half of people over the age of 65 threatens to derail efforts to keep dementia at bay.

Colon cancer is now the second-leading cause of cancer death — and rates are rising in people under 50.

The Pennsylvania Department of Health issued an alert to doctors about an increase in measles infections in pregnant women, as well as a concerning rise in congenital measles — a disease that’s rarely, if ever, seen in the U.S.

Doctors are urging Americans aged 6 months and older to get vaccinated against the flu after an unusual early rise in cases on the West Coast that virologists are still working to ​understand.