Multiple sclerosis is a debilitating disease of the nervous system that affects the brain and spinal cord. It damages the material that surrounds and protects the nerve cells, which in turn slows down or blocks messages between the brain and the body. Multiple sclerosis affects an estimated 300,000 people in the United States and probably more than 1 million people around the world — including twice as many women as men. Most people experience their first signs or symptoms between ages 20 and 40.
Symptoms of Multiple Sclerosis vary widely, depending on the location of affected nerve fibers and may include symptoms like:
In some cases, people may experience muscle stiffness, slurred speech, paralysis, or problems with bladder, bowel or sexual function. Changes in mental ability such as forgetfulness or difficulties with concentration also may occur. Usually, the disease is mild, but some people lose the ability to write, speak or walk.
Multiple Sclerosis occurs in four main patterns:
Doctors are still not sure about the exact cause of Multiple Sclerosis. However, the probable causes are thought to be a combination of heredity, an environmental trigger like a virus and some defect in the immune system.
Women are affected more than men by multiple sclerosis. There is no cure for multiple sclerosis, but medicines may slow it down and help control symptoms. Physical and occupational therapy may also help.