Treatment for these people is usually less complicated. They may respond well to antidepressants, talk therapy, and even to something as simple as exercise. There is less chance of triggering a manic episode, so treatment is less risky in these bipolar disorders.
There are many bipolar disorders. There are also many ways to treat these bipolar disorders. The trick is to match a disorder to the correct treatment and to encourage the patient to follow that treatment to the best of his or her ability. Having words to describe the different bipolar disorders makes it that much easier for the doctors and others to do their parts.