Multiple sclerosis (MS) is a disease of the central nervous system (CNS) in which the immune system, normally charged with fighting off invading organisms, attacks the body’s myelin sheaths, the protective insulation that envelops neurons and facilitates high-speed neuronal communication. Without myelin to assist and protect neurons, the brain and spinal cord signals that permit us to interact with our environment malfunction. Neurons in the brain can be compared to the electrical wires of a house. Both are wrapped in protective insulation—neurons in myelin and electrical wires in rubber—to protect the integrity of their structures. In a way similar to how lights flicker when there is erratic signaling or fail to turn on when their wires rust and break, MS patients often experience weakness, loss of coordination, and neuropathic pain due to erratic neural signaling. They may also experience paralysis when their neurons and myelin sheaths are damaged beyond repair.