What I have found is that long term cannabis use with bipolar, or PNR use of cannabis with bipolar is healthy given it does not lead to depressed states or extreme paranoia that can border schizoaffective disorder. I have been a long time consumer of cannabis as a form of medicine and it has helped me far more than it has harmed me... all I can say on this one is smoke until it starts to hinder more than help. It's important to always bring set and setting into play and to remember that psychologists and psychiatrists LOVE diagnosing people with illnesses that are essentially human emotion... natural, raw emotion and brain activity. Take anything a doctor says or incepts into you with a grain of salt. They call me bipolar, schizophrenic, crazy... I call myself normal as normal can be. You have to decide if you fit in the DSM-IV box... in my humble opinion, it's a major scam and an overall insult to our individuality and personal integrity. It's much easier to prove to a doctor that you are crazy rather then to prove to one that you are sane... who are these lab coated goons to say whose sane and who isn't? A bit pretentious (such is life) if you ask me.