Multiple Sclerosis (MS) is a chronic autoimmune disease that affects the central nervous system. It is estimated that approximately 2.8 million people worldwide are living with MS. The prevalence of MS varies across different regions and populations.
In the United States, it is estimated that around 1 million people have MS, with a prevalence rate of about 0.3% of the population. Europe has a higher prevalence, with rates ranging from 0.1% to 0.3% in different countries. In Canada, the prevalence is approximately 0.3%.
MS is more common in women than men, with a ratio of about 3:1. It typically affects individuals between the ages of 20 and 50, although it can occur at any age. The prevalence of MS tends to increase with distance from the equator, suggesting a potential link to environmental factors such as vitamin D deficiency.
While MS is not considered a common disease, its impact on individuals and their families can be significant. The exact cause of MS remains unknown, and there is currently no cure. However, advancements in research and treatment options provide hope for improved management and quality of life for those living with MS.