A person’s mood disorder associated with low mood (the opposite of hyperthymia). Patients with hypothymia complain of depression, despondency, feelings of joylessness, irreparable loss, loss of interest in life. They have mental and motor retardation and melancholy, in which states of depression, fears for their future, and hopelessness prevail. These feelings are accompanied by unpleasant sensations from the internal organs: compression and heaviness in the chest, in the heart, insomnia, general lethargy. Another feature of low mood is anxiety, when the patient experiences internal, often inexplicable excitement, a premonition of impending misfortune, misfortune, catastrophe.