What causes multiple sclerosis?
While multiple sclerosis is considered an autoimmune disorder, the exact cause hasn't yet been found. There are many theories regarding the reason that people develop MS; these theories range from vitamin D deficiency to a viral infection. Even consuming too much salt is being looked at as possible cause of multiple sclerosis. However, none of these theories have been proven, and the cause of multiple sclerosis remains unknown. Multiple sclerosis is not a contagious condition and cannot be passed from person to person.