There are many factors that affect people's length. Although heredity accounts for a large proportion, it does not affect human height 100%. According to the research of relevant experts, among many factors affecting height, heredity accounts for 33%, acquired exercise accounts for 20%, nutrition accounts for 3 1%, and environment accounts for 16%.

The height of human body is determined by the growth and development of bones. At both ends of the long bone, there is a kind of epiphyseal cartilage which is responsible for bone growth. When the epiphyseal cartilage is constantly proliferating, the bone is also constantly growing; In adulthood, proliferation stops and the body is no longer long. Before the epiphyseal cartilage has not stopped proliferating, regular physical exercise is helpful to stimulate the epiphyseal cartilage proliferation. Therefore, for teenagers, physical exercise is the most active and effective way to promote their height.

In addition, regular physical exercise can improve human blood circulation, enhance the absorption of nutrients and improve the growth ability of bone cells; Mechanical force can promote calcium precipitation in bones, making bones strong and firm. Medical experts' investigation shows that children who often take part in physical exercise are 4-8 cm taller than children who don't take part in physical exercise at the same age. Scientists suggest that adolescent children should exercise for at least 1 hour every day.

What kind of exercise helps to grow taller?

Generally speaking, the most effective exercises are jumping, running, touching heights, floor exercises, playing basketball, volleyball, swimming, skipping rope and pull-ups. Running, jumping and weight-bearing exercise can mainly play the role of pulling muscles and ligaments and stimulating epiphyseal cartilage proliferation; Pull-ups can stretch the spine, make the spine stretch as much as possible, and promote the proliferation of spine bones; When swimming, stretching the spine, kicking and buoyancy of water are all beneficial to the growth of the spine and limbs.

For high-intensity sports, such as competitions or heavy strength exercises, the interval of practice should be longer, and the total practice time should not be too long to avoid excessive fatigue; For low-intensity events, such as walking and skipping rope, the exercise time can be relatively prolonged, so that muscles, joints and bones can be fully stimulated.

It is worth noting that people's height is also affected by endocrine. Therefore, teenagers should not exercise excessively, so as not to affect sleep and disturb endocrine. In addition, strengthening nutrition is also an important link to make the body grow taller. While strengthening exercise, we should supplement bone building materials, colloids and inorganic salts in a timely and sufficient manner.