Light therapy boxes can offer an effective treatment for seasonal affective disorder. Features such as light intensity, safety, cost and style are important considerations.

Zika virus and antibiotic-resistant bacteria are among the top infectious disease concerns of health officials, says Dr. Gregory Poland, director of Mayo Clinic’s Vaccine Research Group. Dr. Poland's research team is developing a vaccine for Zika. There is currently no cure or vaccine for Zika. He offered these thoughts on the ongoing crisis.

Is your child getting enough iron in his or her diet? Find out what causes iron deficiency in children, how to recognize it and how to prevent it.

Most people who have the flu (influenza) have a mild illness and don't need to see a doctor. Common flu signs and symptoms include:

Heart attacks may go unrecognized among individuals with high pain tolerance, putting them at an increased risk for poor recoveries, according to new research in Journal of the American Heart Association, the Open Access Journal of the American Heart Association/American Stroke Association.