How does retinol cream work to undo sun damage?

Retinol cream is a vitamin A derivative that fights damage, and helps your skin look smoother, more even-toned, and younger. Watch dermatologist Doris Day, MD, explain the benefits of retinol, the different types, and the best time of day to use it.

Necrotizing fasciitis is a dangerous infection that can start suddenly and move fast. Spot the signs and know how to respond.

These six possible causes of hair loss may surprise you.

Necrotizing fasciitis is a dangerous infection that can start suddenly and move fast. Spot the signs and know how to respond.

Find out what happens if you neglect to wash your face.

Cuts, scrapes, and other open wounds could increase your risk for a staph infection.