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.

Psychologists say that after the need for food and shelter, humans want to feel valued. But that need usually goes unmet.

Death has a habit of making the internet a game of guessing and the death of Catherine O’Hara served as a reminder that the pursuit of knowledge can often surpass the pursuit of sanity. Ten days after ...

Bayes' theorem is a statistical formula used to calculate conditional probability. Learn how it works, how to calculate it ...

Many people cry at happy moments like weddings, graduations, or reunions. But tears of happiness can sometimes mask an ...

Regularly consuming watercress could benefit active people. The nitrates in the veggie increase nitric oxide in your blood, which may improve athletic performance. One study found that athletes who ...