Depression can vary in severity and duration, from mild and episodic to severe and chronic. Major depressive disorder (MDD) is the most common form of depression, but there are other types of depression, such as persistent depressive disorder (dysthymia) and seasonal affective disorder (SAD).
Symptoms of depression may include persistent sadness, fatigue, changes in appetite or weight, sleep disturbances, feelings of worthlessness or guilt, difficulty concentrating, and thoughts of death or suicide. death. These symptoms can significantly reduce a person’s ability to function in daily life, affecting their relationships, work or school performance, and overall health.