Generally speaking, a child’s height is most influenced by genetic factors, which is the main reason why many parents are tall, the child will generally be relatively tall, while the parents are short, the child is generally not too tall. However, it is not advisable to believe in heredity without paying attention to acquired growth factors such as nutrition supply, disease prevention, sleep and exercise. This is because height is affected by a combination of genetic, nutritional, environmental, and disease factors. Although acquired factors can not fundamentally determine the height of the child, but it greatly affects the genetic potential to play. Just like a sapling with red roots, if it is planted in a place with poor soil, it will definitely not grow fast and high. If the living environment is harsher, there are pests and diseases, not to mention the growth of high, withered and died are possible. The same is true for people, parents grow very high, but the child has a serious wasting disease, or do not eat well, love to snack, unbalanced nutritional intake, but also do not pay attention to increase exercise, want to grow taller are difficult. If the child is well nurtured later in life, when the child is physically and mentally happy, supplying enough but not too much food, ensuring balanced nutrition, encouraging and helping the child to exercise more, ensuring the child gets enough sleep, and actively preventing various diseases, the “short parents” may also raise “tall children The “short parents” may also raise “tall children”.