Depression is not exactly the same as in people’s minds, depression is depression and low emotions. He or she is happy to lie in bed, has no interest in daily life, and spends the day looking sad and moping. Although people with depression experience the above symptoms, the degree of expression varies, from mild to severe, and some attack others. According to the World Health Organization, depression is essentially a mental health psychiatric epidemic. According to surveys, more than 350,000,000 people worldwide suffer from depression. It affects one’s ability to take care of oneself, in addition to other risks such as alcoholism, eating disorders, panic attacks or anxiety. But how can depression be detected? What kinds of depression are there? First of all, the most common symptoms of depression are not just feeling depressed and demoralized. There are nine other symptoms that produce low mood, loss of hobbies (e.g., running, swimming), and doing something embarrassing. However, these symptoms have not attracted attention, and did not go to the hospital in a timely manner. 1, life lost hope, deep helplessness; 2, loss of interest in anything, although some hobbies have brought them happiness; 3, feel exhausted, lethargic; 4, suddenly fat or suddenly thin; 5, drowsiness or insomnia; 6, feel guilty, guilty; 7, difficult to focus on the mind and memory difficulties; 8, the emergence of Thoughts of death and suicide; sometimes physical discomfort (e.g., headache, muscle pain), but hospital examination does not find any problems; 9. If any of the above symptoms appear for more than two weeks, you should seek medical attention promptly.