7-year-old children to increase immunity, through the daily life of a reasonable diet, regular work and rest, and at the same time to strengthen the movement, increase the body’s immunity. 1. Reasonable diet: 7-year-old children should pay attention to the nutritional aspects of a comprehensive and balanced diet, do not picky eaters, eat more protein-rich, vitamin-rich foods, such as milk, fish, chicken, meat, soy products, beef, etc., eat more fresh vegetables and fruits. 2. Regular work and rest: 7-year-old children is the growth and development period, work and rest need to be regular, do go to bed early and get up early do not stay up late, keep enough sleep can make the body energetic, so that the tired body to relax, recover to the best state. 3. Strengthen the movement: 7-year-old children can insist on exercise, strengthen the movement, such as jumping rope, jogging, swimming, playing ball and other sports, can enhance the body’s immunity. If a 7-year-old child is often sick or has uncomfortable symptoms, he or she needs to consult a doctor in time in order to clarify the cause of the disease and standardize the treatment.