Bipolar disorder affects more than two million adult Americans. It usually begins in late adolescence, often appearing as depression during teen years, although it can start in early childhood or later in life.

Do you feel very energetic and outgoing—or your temper goes really bad—on some days, but unusually low or anxious on other days? Do the “up” periods go along hyperactively with increased energy? Do the “downs” go along with a lack of interest in even your hobbies, low energy, hopelessness, and sometimes suicidal thoughts? Do these mood swings mess with your routine and make it hard to sleep, pay attention, or get things done? These symptoms indicate a lifelong but treatable mental disorder known as bipolar disorder.