What is difference between bipolar and depression?

Bipolar is an illness that means passing quickly from depression to euphoria. It can be treated with meds as depression is. The problem with bipolar peopla is that sometimes they feel very well and stop taking meds that they should take all their lives.

While experiencing periods of depression is a part of being a bipolar person, there is a lot more to being bipolar than simply having depression. Clinically, a bipolar person will experience extreme highs (or manic periods) and extreme lows (or depressive periods). There actually was a time that it wasn't called bipolar disorder, it was called manic-depressive disorder. The change in the name of the disease is something that has happened fairly rapidly. With that said, this is a disease that is treatable with a good psychologist.