Do you go through intense moods? Do you feel very happy and energized some days, and very sad and depressed on other days? Do these moods last for a week or more? Do your mood changes make it hard to sleep, stay focused, or go to work? Some people with these symptoms have bipolar disorder, a serious mental illness. This
What Is Depression? Everyone occasionally feels blue or sad. But these feelings are usually short-lived and pass within a couple of days. When you have depression, it interferes with daily life and causes pain for both you and those who care about you. Depression is a common but serious illness. Many people with a depressive illness never seek treatment. But