1. Bad eating behavior: often eat fried and barbecue foods; Irregular meals, often do not eat breakfast or midnight snack; Often eat takeout, overeat, and replace dinner with snacks; Always drink sugary drinks.
2. Lack of physical exercise: sedentary, lack of physical exercise.
3. Smoking: Whether smoking traditional cigarettes or electronic cigarettes.
4. Long-term use of electronic products (computers, mobile phones, game consoles, etc. ): It will lead to eye fatigue and myopia, and long-term use of electronic devices will also affect the quality of sleep.
5. Don't pay attention to eye hygiene: If you watch the computer and mobile phone for a long time, don't pay attention to rest your eyes.
6. Irregular work and rest, often staying up late, lack of sleep.
7. Too much dyeing and perming.
These behaviors are harmful to teenagers' health, and some other behaviors will also affect teenagers' health, such as lack of social activities and interpersonal communication. Therefore, parents and schools should actively guide teenagers to establish correct values and outlook on life, develop healthy living habits and promote their healthy growth.