Rare, deadly, and often missed, some skin cancers develop in areas that rarely see the sun. Scientists are still learning about them, but here's what we know.

A painful sore throat is a signature symptom of an Omicron subvariant called NB.1.8.1, or Nimbus. It now makes up about a third of U.S. COVID-19 cases. Find out what you can do to get relief.

Living with bipolar disorder isn’t just about mood swings: it’s about carrying an invisible weight that few people understand.

What’s the most overrated strategy for protecting your brain? And what’s the one you should actually be using?

June 19, 2025 – The FDA has approved the first twice-yearly shot to reduce the risk of HIV infections. Originally approved in 2012 as a treatment for people with HIV that no longer responded to ...

Pushups and step count are a byproduct, not a definition, of fitness. It’s not even about your “why.” Dig deeper for your true definition of “fit” – it’s worth it.

Our bodies can get rid of PFAS, but slowly: It takes three to five years for the levels of PFOS, a common type of PFAS, to go down by half. "Everyone carries a little bit of PFAS in them," said ...

Use WebMD's drug interaction checker to find which medications, vitamins, or supplements may be unsafe to combine.