Do you feel sad, empty, and hopeless most of the day, nearly every day? Have you lost interest or pleasure in your hobbies or being with friends and family? Are you having trouble sleeping, eating, and functioning? If you have felt this way for at least 2 weeks, you may have depression, a serious but treatable mood disorder.

Depression is a state of low mood and aversion to activity that can affect a person's thoughts, behavior, feelings, and sense of well-being.People with a depressed mood may be notably sad, anxious, or empty; they may also feel notably hopeless, helpless, dejected, or worthless. Other symptoms expressed may include senses of guilt, irritability, or anger.

Everyone feels sad or low sometimes, but these feelings usually pass with a little time. Depression—also called “clinical depression” or a “depressive disorder”—is a mood disorder that causes distressing symptoms that affect how you feel, think, and handle daily activities, such as sleeping, eating, or working. To be diagnosed with depression, symptoms must be present most of the day, nearly every day for at least 2 weeks.

What are the different types of depression?