Major depressive disorder

Definition

Major depressive disorder is a mental health condition characterized by persistent feelings of sadness, hopelessness, and a loss of interest in activities. It affects a person's thoughts, emotions, and behavior.

Related terms

Cognitive behavioral therapy (CBT): A type of therapy that helps individuals with major depressive disorder identify negative thought patterns and develop healthier coping strategies.

Serotonin: A neurotransmitter in the brain that plays a role in regulating mood. Imbalances in serotonin levels are often associated with major depressive disorder.

Antidepressant medication: Medications prescribed to help alleviate symptoms of major depressive disorder by balancing chemicals in the brain.