The condition has strong genetic association since relatives of affected people are eight times more likely than others to contract the disease. Also, women are slightly more at risk of having MS than men. Sixty percent female versus forty percent male. About two-thirds of MS cases have an onset between ages 20 and 40. The demyelination that occurs in MS has also been seen to be caused by certain viral infections, although a viral cause for MS is still highly debated.
Environment also appears to make a difference.
High altitude areas, both the northern and southern hemispheres, seem to have the highest frequency of MS patients. Diet and the Geographical Distribution of Multiple Sclerosis. Since there is no cure, patients should adopt a positive outlook. Certain drugs may be prescribed to alleviate acute symptoms, but the side effects of these drugs make long-term usage dangerous. A significant number of people with MS may have some degree of malabsorption.