Bipolar I

Bipolar I disorder is a mental health condition that affects the brain and mood regulation. It causes extreme changes in mood, energy, and activity levels, leading to episodes of mania and often depression. During manic episodes, a person may feel overly happy, energetic, or irritable, and may engage in risky behaviors. These mood swings can disrupt daily life, relationships, and work. The condition involves the nervous system and impacts emotional stability and decision-making. It is a lifelong disorder that requires medical diagnosis and management.

Bipolar I disorder is a chronic psychiatric illness characterized by the presence of at least one full manic episode, which may be preceded or followed by hypomanic or major depressive episodes. The core pathology involves dysregulation of mood due to altered neurotransmitter systems, including dopamine, serotonin, and norepinephrine pathways. Genetic factors, such as variants in ANK3 and CACNA1C, contribute to susceptibility. The disorder is clinically significant due to its association with impaired functioning, increased risk of suicide, and comorbid psychiatric conditions. Diagnosis relies on clinical history and symptomatology, with episodes lasting at least 7 days or requiring hospitalization. The manic phase is marked by elevated or irritable mood, increased goal-directed activity, and impaired judgment.