< Back to All Videos thirdAGE > What Is Bipolar Disorder? Up Next... 10 Self-Harm Prevention Self-Harm Prevention Holiday Toy Safety Bedtime and Tech Loading the player ... Mental Health What Is Bipolar Disorder? Bipolar disorder, also known as manic-depressive illness, is a neurobiological disorder, which can cause dramatic shifts in mood, energy, activity levels, affecting all facets of life. Related Videos Self-Harm Prevention Holiday Toy Safety Bedtime and Tech Treating Postpartum Blues