With an untreated suicide rate of 20 to 25 percent, manic-depressive illness (also called bipolar disorder) ranks among the most fatal diseases in medicine.
Why is it such a killer? For one thing, it's a long way down for a person falling from the HEIGHTs of mania to the depths of depression.
We'll talk to top experts about this, and about new research that could narrow the gap between "average" and "optimal" treatments. Plus, a whole range of brand-new diagnoses that may leave you wondering whether everybody isn't a little bit bipolar.