My topic is about how MS affects the body. It affects the central nervous system ( the brain and the spinal cord) which affects the rest of the body. I also compared and contrast the PNS and CNS. MS affects many systems of the body including the digestive, immune, skeletal, reproductive and circulatory system. However, it does not affect the PNS like the other systems. MS attacks people usually aging from 20 to 50 and attacks females twice as much as males. MS symptoms include muscle weakness, weak reflexes and muscle spasm, difficult in move, miss-coordination and unbalance with others.