Atypical Disorder, often referred to as Atypical Depression, is a subtype of depression characterized by specific symptoms that differ from typical major depressive disorder. Individuals with this condition may experience mood reactivity, meaning their mood can improve in response to positive events. Other symptoms include increased appetite, excessive sleep, and a heavy feeling in the limbs. This disorder can significantly impact daily functioning and relationships. Treatment options often include psychotherapy and medications, such as antidepressants. Early diagnosis and intervention are crucial for managing symptoms and improving quality of life.