Ruby Wax: What's so funny about mental illness?

Diseases of the body garner sympathy, says comedian Ruby Wax -- except those of the brain. Why is that? With dazzling energy and humor, Wax, diagnosed a decade ago with clinical depression, urges us to put an end to the stigma of mental illness.

Ruby Wax is a loud, funny woman -- who spent much of her comedy career battling depression in silence. Now her work blends mental health advocacy and laughs.