The circulation system carries the life-blood of the body. It has two major functions. The first is to carry oxygen, nutrition and other elements to all parts of the body. The second function in to take away waste materials to be filtered and then to circulate again. As long as that is working properly the body will remain generally healthy. When there is a constriction in circulation, due to tight muscles or other reasons, the full function of the circulation system is impeded and chronic ailments can occur.