bipolar disorder, which looks very much like
unipolar depression in that these people have only very slight, almost unnoticable, manic phases that go undignosed - in other words, there is a spectrum of bipolar disorders, some with a greater degree of mania, other with a greater degree of depression, and many in between. And since their clinical presentations are very similar, people with soft bipolar disorder are sometimes misdiagnosed with unipolar depression.