Remember - It's Depression. "The reason none of us can just 'snap out' of depression is that it's an absolutely real illness. Stop thinking of the symptoms you are experiencing as being a manifest reflection of something that is deeply wrong with you. You're just ill. In the future they will be able to precisely elucidate the neurochemical changes that are going on within the brain. For now, they have kind of a rough idea of what's going on but not much more than that."