Multiple sclerosis is a devastating disease that affects the spinal cord and brain. As a result, sufferers of MS lose muscle control, balance, and vision. The body's own immune system causes the damage, which is why multiple schlerosis is called an autoimmune disease. Scar tissue begins to build up in the brain and spinal cord, and the brain can no long send and receive messages from the body. MS is more common in women, and doesn't usually occur until after adolescence. Why do people get MS? Doctors aren't sure what causes multiple sclerosis to strike. Some scientists claim it is genetic, passed down from from parents. Others believe it's a result of environmental factors. Other studies have shown that viruses such as the flu or measles trigger MS, although this hasn't been proven. People with multiple sclerosis begin to have symptoms like muscle weakness, and their coordination and balance worsens. Other multiple sclerosis symptoms include tingling and numbness are felt throughout the body. They might experience eye pain and double vision. Bladder control problems are common as messages to the brain to empty the bladder are affected. As MS progresses, muscles stiffen and weaken further. Speech can become slurred and thinking and processing information becomes difficult. Many people need to use a walker or wheelchair once the MS symptoms become bad enough to impair walking and movement. There is no cure for multiple sclerosis, although multiple sclerosis medications are used to control attacks and relive some of the stiffness and pain associated with the disease. Physical therapy can be a great help to patients with balance and coordination problems. Exercises to strengthen and improve movement are performed with a therapist, and many of these exercises can be done by the patient at home. Some people choose alternative multiple sclerosis treatments, which include things like regular massage to help relax, and acupuncture. Oral supplements such as evening primrose oil may offer relief for some patients. Deep brain stimulation is a treatment for MS tremors, where an electrode is placed in the thalamus and remains in the brain. A device similar to a pacemaker is placed in the chest and controls the electrical shocks.