Depressed state and depression difference: First, the depressed state is a performance, refers to the mood, there is some indifference and emotional instability phenomenon; Second, depression is the name of a disease, is a symptom of neurosis, it is due to overuse of the brain, mental stress, physical exertion caused by a kind of dysfunction of the body caused by the disease, which contains insomnia, anxiety, hypochondriacs, phobias, obsessive-compulsive disorder, neurasthenia, neurogenic vomiting and other conditions, the serious cases will be suicidal ideation.