Does a higher SPF provide more sun protection?

When it comes to the SPF level in sunscreen, a higher number doesn't always mean better protection. In this video dermatologist Dr. Ellen Marmur explains why.

How does sunscreen protect your skin? Learn the facts about SPF, UVA, and UVB rays, broad-spectrum sunscreens, and more.

Top dermatologists share their wisdom on ingredients and SPF levels—plus how much to use, how often to reapply, and more.

No, immunizations aren't linked to autism.

Put these practices into place and you could lower your risk of cardiovascular disease.

Know the risks of hypoglycemia and develop a plan for managing it with these expert-backed tips.