In addition to genetic factors, a child’s growth is mainly the result of the action of growth hormones. Generally speaking, good sleep and proper exercise help to grow taller. This is because the secretion of growth hormone is pulsatile, and it is secreted three times more during sleep than when awake, so adequate sleep is beneficial to growth; meanwhile, exercise can also stimulate the secretion of growth hormone, especially bouncing exercises, stretching exercises and whole-body exercises. However, sleep and exercise do not increase genetic height, but only allow the genetic potential to be maximized. Moreover, this is only effective for children with normal growth hormone secretion; if growth hormone secretion is impaired, sleep and exercise will not improve their height.