Studies have found that children do not grow at a uniform rate throughout the year, and the growth rate varies from season to season, with spring being the fastest. The World Health Organization pointed out in a report that children’s growth and development is different throughout the year, with the fastest growing months being April and May each year. Especially in May, can increase the height of up to 7.3 mm, the slowest month is October, can only grow 3.3 mm tall. Spring has good light, more vitamin D synthesis, sufficient food, and children are relatively active. Seize the opportunity to grow in spring. The growth of children depends on the following factors: 1. Genetic factors. Plays a very important role in the process of children growing taller. The parents’ stature is high, and generally the children’s length is also high. 2, gender factors. Generally, boys are taller than girls. 3, nutritional factors. Comprehensive and balanced nutrition is conducive to rapid growth and development of children! 4, the quality and quantity of sleep is very important for children to grow taller body! 5, the right amount of exercise to promote the development of children’s bones long bones, in the process of growing taller is also very important! 6, a pleasant and healthy environment is also very important for children’s development! 7, deep sleep when the pituitary gland secrete growth hormone, conducive to the growth of children’s height! When children are in light sleep, the synthesis of proteins in the brain is accelerated, which is conducive to the maturation of the nervous system, the establishment of new synaptic connections, and the promotion of memory. At the same time, light sleep is also an important time to restore strength to relieve fatigue!