[drowsspa]

First of all, that study is about challenging a specific chemical imbalance, which was not that well supported anyway.

But I think mental illnesses challenge our very old notions of free will, willpower and control. How much are you really in control when the mental structure for motivation in the brain is broken? Personally, it's not like I pulled myself out of depression. I just took advantage of a "break" my brain gave me.