That is my biggest fear is for one of my sons to have MS.. I'm fine with myself having it but not my sons. I would take all the painful spasms in the world as long as they don't have to endure this. I remember from the MS Expo a doctor saying your immediate family has 10 times the risk than the regular public which is about 3%. I felt better knowing my sons only have a 3% risk of getting MS. Grr.. MS has me grouchy today.