Mood Disorders

Everyone experiences the "blues" now and then as well as times of joy and self-confidence. Most people even experience mood swings—times when they move quickly from feelings like joy to opposite feelings like sorrow. But what happens when normal moods become so extreme that a person can't think, feel, or act appropriately? What if a person is so "up" he does foolish, even dangerous, things? What if he's so "down" he can barely get out of bed? The U.S. Surgeon General reports that, at any on...