What are the reasons that affect the health of teenagers at present?

(1) Major changes in the living environment and diet structure have led to a marked reduction in physical activity, accelerated the deterioration of human functions, and the physical health level of adolescents has also declined.

(2) The intergenerational rearing pattern characterized by overprotection deprives children of the necessary physical stimulation to promote their natural growth and development; In the Internet age, the static leisure mode characterized by sedentary behavior has hindered teenagers from obtaining lasting and sufficient sports fun, and formed the habit of regular physical exercise based on it.

(3) Teenagers are under great pressure to take exams for further studies, which directly leads to a serious shortage of sleep time, prolonged study time and reduced leisure time, especially physical exercise time.