What is involved?We will be monitoring the course and patterns of bipolar disorder over time (up to 10 years). The first study visit is up to 8 hours, including mental health history interview and neuropsychological testing. Study subjects will fill out questionnaires at regular intervals. Genetic material (DNA) will also be collected through a blood draw. The purpose of getting a sample of the genetic material is to be able to study potential genetic causes of bipolar disorder in the future.