The child’s height development is composed of 2 parts, a part of about 80%, is the growth of pre-pubertal development, about 5 cm per year, until the rapid growth of puberty, growth varies from person to person; most boys grow to about 28 cm, girls grow to about 25 cm. If puberty is early, or development is slowed down can affect the height of the body. Puberty is normal for boys around 12 years old, and girls start puberty around 11 years old. If puberty is early boys before the age of 9, girls before the age of 8 secondary sexual characteristics are precocious; can affect the development of height, eventually leading to short stature. Zhou Zheng, Department of Pediatrics, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine
Development depends not only on the actual age, but also on the bone age. Height has a certain relationship with heredity, and also has a great influence on nutritional status and environmental factors. In addition to reducing the occurrence of diseases, balanced nutrition, adequate sleep, and moderate activity are also necessary for normal height development. Keep a growth diary and measure height regularly; ensure balanced nutrition, protein intake, and more vegetables and fruits. Ensure sufficient sleep, more than 9 hours of quality sleep every day; increase physical activity, strengthen lower limb exercise, you can run, climb the stairs, jump rope, ensure more than 30 minutes of exercise time every day, etc.