What role do spinal curves play?

A person has four bends of the spine. They appear in our country after birth and are fully formed before the age of 20. They are important, since they relieve a strong stress on the spine and the body as a whole while walking, sitting, performing various jobs, etc. The first bend is formed when the child learns to hold his neck on his own. The second is when the child learns to walk. The third and fourth are formed independently and are intermediate. In some people, the spine is not curved correctly. This disease is called scoliosis.