So you dont think depression is stress related illness that can lead people to suicide such as famous intelligent creative people like Robin Williams? When im in severe depression i feel horrible, physically ill. People are different, have different experiences of depression and Bipolar. No one is the same cos people respond/deal with things differently. And there are different factors and circumstances that lead to people developing them. People of all kinds of background, can get depressive illness at different age, young and old, female or male.