Stretching for children in the growth period may have a certain effect on height growth, but for adults stretching does not have much significance on height increase. Stretching exercise mainly produces certain biological stimulation to muscles and ligaments, and has a certain promotion effect on the development of children in the growth period, but due to the growth and development of more influencing factors, such as hereditary factors, nutritional status, bone conditions, etc., and the role of stretching exercise may be smaller. In addition, not all people will grow taller doing stretching exercises, and children are no exception. Especially for adults, stretching exercise is not very meaningful to increase height, mainly because the epiphysis of adults has closed, from the physiological point of view, there is no increase in height.