When you have a stigmatized illness such as depression or bipolar disorder there is much comfort in meeting others - even on the page of a book - who have endured the same desperation and have come out the other side . For me , learning about the physiology of depression and the chemistry of the brain gave me tremendous relief . These writings convinced me I was not weak or lazy . I was sick .

Question: What do they know about depression ?
Answer: That being depressed is normal .That it is caused by the brain .None of the above choices .Thqat depression is not caused by the brain .