Crash course in depression from TED-Ed.

What is depression and do you have it?

This is a great clip that provides a excellent overview of clinical depression, its symptoms, and treatment. Provided by TED-Ed: link

View full lesson: http://ed.ted.com/lessons/what-is-depression-helen-m-farrell Depression is the leading cause of disability in the world; in the United States, close to ten percent of adults struggle with the disease. But because it's a mental illness, it can be a lot harder to understand than, say, high cholesterol. Helen M.