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.

A migraine attack is not just a “bad headache”. Migraine is a debilitating neurological condition which can cause nausea, vomiting, and sensitivity to light or sound, in addition to severe headaches.

Potatoes sometimes get a bad rap, but this vegetable can be a nutritious part of your diet—as long as you're preparing them ...