What is bipolar disorder?and how can someone deal with a person who suffers from it?

You may know that: Bipolar disorder manifests in extreme mood swings between depression and mania/hyperactivity. Some folks are more hyper and some more depressed. The cycle can be very quick or span over days. A licensed mental health professional can diagnose and treat you. It's best to go to someone who has a lot of experience w/this. Your family doc can refer you. Peace and good health. Education helps.