Depression is a mental illness with abnormal depression as its main clinical manifestation. Most patients with depression in China don't think it is a mental illness, which delays the treatment opportunity. There are also many people who mistake the symptoms of depression for physical diseases, and often go to the internal medicine or neurology department of general hospitals to treat physical symptoms related to depression, such as headache, dizziness, fatigue, and memory loss.

There is a simple way to identify typical depression, that is, a person's depression lasts for more than two weeks, accompanied by any of the following nine symptoms: 1. Lose interest or pleasure; 2. Energy loss or continuous fatigue; 3. Reduced activity or slow action; 4. Excessive remorse or guilt; 5. Lenovo is difficult or unable to concentrate; 6. Repeated suicidal thoughts or behaviors; 7. Insomnia or early awakening; 8. Weight loss, loss of appetite or ADHD; 9. Decreased sexual desire.