Artwork depicting<unk>  mood disorder by Marc-Anthony Macon Depression is a mental disorder characterized by prolonged unhappiness or irritability, accompanied by a constellation of somatic and cognitive signs and symptoms such as fatigue, apathy, sleep problems, loss of appetite, loss of engagement; low self-regard or worthlessness; difficulty concentrating or indecisiveness; or recurrent thoughts of death or suicide.<unk>  is similar to adult major depressive disorder, although young sufferers may exhibit increased irritability or behavioral dyscontrol instead of the more common sad, empty, or hopeless feelings seen with adults. Children who are under stress, experiencing loss, have attention, learning, behavioral, or anxiety disorders are at a higher risk for depression.<unk>  depression is often comorbid with mental disorders outside of other mood disorders; most commonly anxiety disorder and conduct disorder. Depression also tends to run in families. In a 2016 Cochrane review cognitive behavior therapy (CBT), third wave CBT and interpersonal therapy demonstrated small positive benefits in the prevention of depression. Psychologists have developed different treatments to assist children and adolescents suffering from depression, though the legitimacy of the diagnosis of<unk>  depression as a psychiatric disorder, as well as the efficacy of various methods of assessment and treatment, remains controversial.
Depression in childhood and adolescence
Outline of bipolar disorder
Late life depression
Retarded depression
Mental disorders diagnosed in childhood
Bipolar disorder in children
Treatment-resistant depression
Long-term depression