Depression - a mood disorder where an individual feels sad and lacks interest in their usual activities. They may have irrational negative thoughts, raised or lower activity levels and concentration problems.
Characteristics of depression: behavioural, emotional and cognitive
Behavioural characteristics of depression :
reduced or increased activity
restlessness
agitation
difficulty sleeping
Cognitive characteristics of depression:
Negative thoughts leading to negative emotions
negative self-concept
negative view of the world
glass half empty approach
irrational thoughts
Emotional characteristics of depression: five symptoms needed for diagnosis