During sport, blood flow is accelerated, particularly by the movement of long muscles such as those in the legs (isometric movements) and the level of oxygen reaching the cells increases. As a result, the individual’s fatigue is eliminated and he or she is energized as toxic substances are expelled from the body. At the same time, the body acquires increased resistance to microbes. People who take regular exercise possess broad, clean arteries and this has the effect of preventing them from clogging and thus of preventing heart disease. Read more