It's not often I disagree with you, even less often I feel the need to state such when I do, but this time I do. The truth is, a lot of psych diagnosis is guessing. Because it's rare that you get a patient/client who sticks with therapy long enough to form a relationship with the psychologist/psychiatrist, so they get a chance to learn not only your personality, but your history and the context of your actions in your own life. Because of that, there are a lot of people who are misdiagnosed. And I think it's been made worse by psychopharmacology. There are a lot of great drugs that have been developed that can do amazing things to help people. But they are never universally effective, and they should never be considered an easy fix for someone. I think a lot of practitioners don't bother to consider that though, and jump to prescribing meds on the first visit with a client. I've had a few very close friends with bipolar family members, and I have full faith it's a real disease. And it can definitely contribute to addiction, and risk taking behavior. If someone is manic-depressive, people do crazy **** when they are manic because they think they are invincible and can take on the world, and sometimes end up throwing all common sense out the window. I'm not talking about a baller weekend in Vegas kind of behavior. I mean running into traffic on an Interstate because they forget cars can kill them at 60mph. If you combine that kind of recklesness with someone who has been exposed to drugs, or has friends who habitually abuse substances, it can definitely contribute to addiction.