Major Depressive Disorder (MDD) is a serious mental health condition characterized by persistent feelings of sadness, hopelessness, and a lack of interest in activities once enjoyed. It can affect daily functioning, making it difficult for individuals to carry out routine tasks and maintain relationships. Symptoms of MDD can vary but often include changes in appetite, sleep disturbances, fatigue, and difficulty concentrating. Treatment options such as therapy and medication can help manage symptoms and improve quality of life for those affected by this disorder.