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.

WebMD's COPD Health Center provides in-depth information on chronic obstructive pulmonary disease including symptoms, causes, treatment options, diagnosis, and tests.

High blood pressure affects I in 4 American adults. Find in-depth high blood pressure and hypertension information including its causes, symptoms, and treatments.

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?

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.

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 ...

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 ...

In systolic heart failure, the left ventricle becomes weak and can't contract and work the way it should. There's no cure, but you can make lifestyle changes to help treat it.

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

June 16, 2025 – Ready to hit the great outdoors this season? Just make sure you've taken steps to protect yourself from ticks and tickborne illness, which experts say is on the rise.