Depression and apathy

Depression (from deprimo "press down, suppress") is a mental disorder—the main features of which are reduced—oppressed, depressed, melancholy, anxious, fearful, or indifferent mood and decreased or loss of the ability to enjoy pleasure. Some of the following symptoms are usually also present: decreased self-esteem loss of interest in life and habitual activities, inadequate guilt, pessimism, impaired concentration, fatigue or lack of energy, sleep and appetite disorders, suicidal tendencies. Severe forms of depression are characterized by the so-called "depressive triad": decreased mood, mental retardation, and physical activity. Depressive mood in some cases can be a normal temporary reaction to life events, such as the loss of a loved one. Depression can be a symptom of some medical conditions and a side effect of some medications and treatments; if the cause of depression is not obvious and the depressive disorder occurs without external influences, such depression is called endogenous

Typical (main) symptoms of depression include:

• depressed mood, independent of circumstances, for a long time (from two weeks or more);

• loss of interest or pleasure in previously enjoyable activities;

• pronounced fatigue, "fatigue", characterized by the stability of this state (for example, within a month).