What is MS?
What are the different types of MS?
Who is affected by MS?
What are the treatments for MS?
Sources
Multiple Sclerosis
http://www.nationalmssociety.org/about-multiple-sclerosis/what-we-know-about-ms/what-is-ms/index.aspx
http://www.multiplesclerosis.com/us/about_ms.php
http://www.webmd.com/multiple-sclerosis/guide/what-is-multiple-sclerosis