Abstract
The main protection against diseases is the prevention of health and the promotion of a healthy lifestyle, which contributes to the maintenance and improvement of health. The internal picture of health has age-related features that are reflected in its structure. The development of the internal picture of the child's health is carried out in stages, as he grows up, it moves inside the personality, manifests itself in his behavior. It can be argued that the internal picture of the health of schoolchildren of any age is full of contradictions and mistakes, many of its components need correction and development, so it is difficult for them to lead a healthy lifestyle. Assessing the lifestyle of the country's population as a whole and children, adolescents separately in the aspect of medical activity, it should be noted that there is still no value concept of health as the dominant of life's benefits. Children have no desire for physical perfection, to create a cult of health, there is a tendency to neglect health, to misunderstand their own lifestyle as a derivative of health