Pay attention to the subtle changes in your child’s body Adolescence is another period of rapid physical growth and is a process in which the human body is becoming increasingly mature. The healthy development of children cannot be achieved without the careful care of parents, and there are always some problems in the process of children’s physical development, which some careless parents may ignore until they find the problem may be irreversible. Therefore, as parents, when paying attention to their children’s academic performance, they should also pay attention to the slightest changes in their children’s bodies. The two rapid growth periods of a child are of concern to parents, who first need to understand how far their children should develop at different ages, so that they can have a good idea. There are two rapid growth periods in a person’s life that are very critical: the first is the infancy period (0-3 years old), when the child grows rapidly. The fastest growth rate is in the first year after birth, which can grow 25 cm, and in the second year the growth rate is 10 cm. The growth rate slows down between the age of 3 and before puberty. The second peak is puberty, a period of accelerated growth. Due to the regulation of growth hormone and sex hormones, growth accelerates again in both male and female children as they enter puberty. Boys can grow 25-28 cm in height throughout puberty, and girls can increase their height by about 25 cm. Puberty is the period of transition from childhood to adulthood. Puberty begins with a sudden increase in growth, the appearance of secondary sexual characteristics, and ends when the epiphysis is completely healed, the body stops growing, and sexual development matures. Adolescence is the final stage of human growth and development, and is a critical period for determining an individual’s height, physical fitness and intellectual level. Physical changes in children during puberty Age of pubertal development, boys: 12-15 years, girls: 10-13 years. There are differences by race, geography, era and living conditions. There are both individual differences and genetic factors related to the family. In our clinic, we often have to ask parents when their first menstrual period will occur, when they will experience a sudden increase in height, etc. The main manifestation of a child’s puberty is the appearance of a second rapid growth (growth spurt), commonly known as a growth spurt. Boys: 10-12 cm/year (peak rate); girls: 7-9 cm/year. Another manifestation is the beginning of the development of secondary sexual characteristics, the appearance of distinct sexual distinctions, and the gradual development of reproductive functions. Abnormal pubertal development includes precocious puberty and delayed development. The appearance of secondary sexual characteristics before the age of 10 for boys and 8 for girls may be precocious. Parents should keep track of their child’s sudden height increase, which is usually 10-12 cm a year during pubertal development. If the peak rate does not occur and the growth is not satisfactory, the development is delayed. Precocious puberty and delayed growth are both abnormalities in spring and spring development and require prompt medical attention. Nutrition, exercise and sleep, none of which should be missing Nutrition, exercise and sleep should not be neglected. When children eat more, it is possible that they start to grow faster, and parents should ensure their children’s nutrition and pay attention to the absorption of calcium and protein. However, a balanced diet is needed, not a partial diet, to prevent obesity and abnormalities in sugar p lipid metabolism. Parents should pay attention to the entire growth and development process of their children, and this stage must ensure that the child’s exercise and sleep time. Insist on accompanying the child to carry out appropriate sports exercise, and let the child go to bed early, must not stay up late, because the night is the peak of growth hormone secretion, about 11-12 pm.