Multiple sclerosis (MS) is a demyelinating disease that affects the central nervous system. Common symptoms include vertigo, fatigue, impaired speech, numbness, and vision loss. It is diagnosed based on symptoms, MRI/CT scans, and cerebrospinal fluid tests. There are several FDA-approved drugs to treat MS and manage relapses. Risk factors include genetic mutations and environmental exposures. MS primarily affects women and typically presents in young adults, with onset usually between ages 20-30. There is no cure, but treatments can help prevent relapses.