Factors that affect height mainly include genetics, physical exercise, nutrients, sleep, emotions and so on. Boys want to grow taller try to do these points. 1. Strengthen physical exercise: physical exercise is an indispensable and important condition for maintaining bone health and promoting bone growth. Reasonable exercise helps to improve endocrine function, promote growth hormone secretion, and promote growth and development. 2. Diet and Nutrition: Nutrition should be comprehensive, partiality will affect the development of height, should be based on a normal diet, to ensure that the intake of protein and calcium, such as milk, lean meat, soybean products and so on. 3. Appropriate sun exposure: the ultraviolet rays of the sun can promote the cholesterol in the skin into vitamin D. Vitamin D can promote the absorption of calcium, thus promoting bone growth. 4. Ensure adequate sleep: the quality of sleep plays an important role in the secretion of growth hormone. In addition, maintaining a good psychological and emotional state also contributes to height growth. In case of abnormal development, please seek medical treatment offline in time.