Apathy is a symptom or a temporary mental state characterized by indifference, emotional coldness, indifference. It is manifested by indifference, detachment from what is happening, lack of motivation for any activity, decrease in emotions, slowness of actions. Diagnosis depends on the cause of apathy, the main methods are clinical conversation, observation, psychological testing. In addition, an examination by a neurologist, instrumental studies of the brain are prescribed. Symptomatic methods of treatment include psychotherapy, pharmacotherapy, daily regimen correction.