Catherine O’Hara’s death from a pulmonary embolism has drawn attention to this serious condition in which a blood clot lodges in the lungs. Dr. Leana Wen explains.

Lunar New Year begins February 17—here's what it celebrates, why dates shift, and what the Year of the Fire Horse means.

Here, Dr. Newberry and Dr. Ashar break them down. It’s important to note that there’s not a whole lot of research on treatments for an upset stomach, Dr. Ashar says. Part of the reason for this is, as ...