Depression is characterized by a person experiencing how many symptoms for at least two weeks?

Depression, specifically major depressive disorder, is diagnosed based on the presence of symptoms that significantly impair a person's ability to function in daily life. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), a person must experience at least five or more of a specific set of symptoms for a duration of at least two weeks to meet the criteria for a diagnosis of major depressive disorder. These symptoms may include feelings of sadness, loss of interest or pleasure, significant weight change, sleep disturbances, fatigue, feelings of worthlessness, or difficulty concentrating, among others.

The requirement of five symptoms is critical as it helps distinguish major depression from less severe forms of mood disturbances, ensuring that the diagnosis reflects a significant and persistent change in mood and functioning. Thus, identifying five or more symptoms provides a clearer picture of the severity and impact of the depressive episode on an individual's life.