What is one of the symptoms of Major Depressive Disorder?

One of the key symptoms of Major Depressive Disorder (MDD) is the loss of interest or pleasure in activities that were once enjoyable, a phenomenon known as anhedonia. This symptom is fundamental to the diagnosis of MDD and reflects a significant change in mood and behavior. Individuals with MDD often find that activities they previously enjoyed, such as hobbies, socializing, or even work, no longer bring them satisfaction or joy. This pervasive loss of interest can contribute to social withdrawal and can significantly impair functioning in daily life.

Recognizing this symptom is crucial for accurate diagnosis and treatment, as it differentiates MDD from conditions that may not display the same level of emotional disturbance regarding pleasure and interest. Other symptoms of MDD may include changes in weight, sleep disturbances, and feelings of worthlessness, but the hallmark of MDD is this profound impact on one's ability to experience pleasure.