a mental condition marked by ongoing feelings of sadness, despair, loss of energy, and difficulty dealing with normal daily life. other symptoms of depression include feelings of worthlessness and hopelessness, loss of pleasure in activities, changes in eating or sleeping habits, and thoughts of death or suicide. depression can affect anyone, and can be successfully treated. depression affects 15-25% of cancer patients.
抑うつ病.
a mental disease that a confined person suffers because of living in solitude
the worship of snakes, called ophiolatry
a disease that affects the central nervous system, called neurosis
a generic term of neurosis called hypochondria that causes anxiety and can lead to nervous breakdown (neurasthenia)