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About MS

Multiple sclerosis (MS) is an unpredictable disease of the central nervous system that disrupts the flow of information within the brain, and between the brain and body. The cause of MS is still unknown. Scientists believe that a combination of environmental and genetic factors contribute to the risk of developing MS.

The progress, severity and specific symptoms of MS in any one person cannot yet be predicted. Most people with MS are diagnosed between the ages of 20 and 50, with at least two to three times more women than men being diagnosed with the disease.

Making a Difference

The National MS Society is the largest private funder of MS research in the world, investing more than $1 billion to date.

MS Navigator Program

The MS Navigator Program connects more than 180,000 people each year to lasting solutions to help them overcome the challenges of living with MS.

More than 500,000 dedicated and passionate volunteers help propel our mission.


Every day, people do whatever it takes to move their lives forward despite MS. Together, we will change the world for people with MS.

What is MS?

Interested in learning more about multiple sclerosis? This video can help.


MS Research

MS activists have helped secure $45 million in MS Research funding for the MS Research Program through the Department of Defense since 2009.

With more than 6 million visitors per year, our website nationalMSsociety
, provides the most comprehensive MS information in the world, and is where people affected by MS go most often to get the best information about MS.


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