I recently read a newspaper report that a young and promising manager of a state-owned bank suddenly committed suicide because of depression. So what is depression? Depression, also known as depressive disorder, is characterized by a significant and persistent depressed mood and is the main type of mood disorder. Clinical depression can be seen as disproportionate to its situation, and the depression of mood can range from sullenness to grief, low self-esteem and depression, and even pessimism and anxiety, and in severe cases, psychotic symptoms such as hallucinations and delusions can occur, and there can be suicide attempts or behaviors. The main clinical manifestations of depression are: low emotion, depression and pessimism; slow thinking and association, slow reaction, closed thinking, feeling as if “the brain is a rusty machine”; slow behavior, passive and lazy life, not wanting to do anything, unwilling to contact and interact with people around, often sitting alone, or lying in bed all day, living alone behind closed doors, alienating friends and relatives In severe cases, the person may not even care about eating, drinking and other physiological needs and personal hygiene, and may be unkempt and unkempt; he or she may have decreased memory, attention disorder, prolonged reaction time, increased alertness, poor abstract thinking ability, learning difficulties, poor language fluency, reduced spatial perception, eye-hand coordination and thinking flexibility; he or she may have sleep disorders, fatigue, loss of appetite, weight loss, constipation, pain in any part of the body, decreased sexual desire, and a lack of energy. pain in any part of the body, loss of libido, impotence, amenorrhea, etc. Patients should not take depression lightly, go to the hospital in time and treat it under the help and guidance of doctors to relieve or reduce the excessive psychological burden and pressure of patients.