<span>By performing different stretching exercises targeting multiple areas, one is able to realize long-term flexibility. The exercises depend on the various target muscles and the intensity of the exercises determines the outcome. Moreover multiple muscle exercise like swimming have been noted to improve on flexibility.</span>
Im pretty sure that this is the nerves which is called the nerves system I think
Take prenatal vitamins with folic acid.
Maintain a healthy weight
Avoid alcohol, cigarettes, and illegal drugs.
Eat healthy food.