Depression is a common mental illness nowadays, and its main symptoms include low mood, pessimism, slow thinking, etc. As for the harm of depression, there are mainly the following points:
1. Loss of interest in daily life and lack of pleasure;
2. Significant reduction in energy, and persistent fatigue without reason;
3. Decline in self-confidence or inferiority, or guilt;
4. Insomnia, early waking or oversleeping;
5. Loss of appetite, neurosis, significant weight loss;
6. Suicidal thoughts or behaviors;
7. Significant decrease in libido;
8. Difficulty in concentrating or decline;
9. Difficulty in association, and significant decline in thinking ability. The depressive mood fluctuates greatly during the day, often heaviest in the morning, then gradually easing, and the lightest in the evening.