Question: who is most at risk for ms?
Answer: Age. MS can occur at any age, but onset usually occurs around 20 and 40 years of age. ... 
Sex. ... 
Family history. ... 
Certain infections. ... 
Race. ... 
Climate. ... 
Vitamin D. Having low levels of vitamin D and low exposure to sunlight is associated with a greater risk of MS .
Certain autoimmune diseases.