Major depressive disorder, sometimes known as clinical depression, is a complex mood disorder that has emotional, psychological, social, and physical effects. In addition to feelings of sadness, depression can cause a loss of interest in activities, difficulties functioning in areas of life, sleep difficulties, physical problems, and other symptoms.123
There are several types of depressive disorders, but “depression” usually refers to major depressive disorder (MDD).
Read on to learn more about the symptoms of depression and how they can be managed.
Depression is classified by severity:4
- Mild: Symptoms result in minor impairment of daily life
- Moderate: More significant symptoms and impact on daily life
- Severe: Substantial symptoms and marked interference with functioning.