Video A brief history of melancholy - Courtney Stephens

View full lesson: http://ed.ted.com/lessons/why-do-some-people-go-bald-sarthak-sinha

If you are a living, breathing human being, chances are you have felt sad at least a few times in your life. But what exactly is melancholy, and what (if anything) should we do about it? Courtney Stephens details our still-evolving understanding of sadness -- and even makes a case for its usefulness.

Lesson by Courtney Stephens, animation by Sharon Colman Graham.