Most of us have seen or had warts, but what exactly are these things?

Heartburn is a common, uncomfortable condition that is remedied fairly easily.

We've all experienced déjà  vu, but what is it?

What's the science behind those beet-red cheeks?

How can you fight off varicose veins?

Head lice are a common parasite carried by humans.

If you swallow a piece of gum, does it really stay in your stomach for seven years?

Bunions are a painful -- and often hereditary -- foot condition.

A short guide to the dizzying sensation of vertigo.

Ringworm isn't a worm at all! It's a terribly contagious fungus.

Do you have little white spots under your fingernails?

Car accidents are the leading cause of whiplash.