1. Multiple Sclerosis

2. Definition
A disease in which your immune system attacks the protective sheath (myelin) that covers your nerves.

3. Symptoms
Numbness or weakness in one or more limbs that typically occurs at one side of your body at a time

4. Causes
The damage to the myelin sheath. This sheath is the protective covering that surrounds nerve cells. When the nerve covering is damaged, nerve signals slow down or stop.

5. Risk Factors
Age- MS can occur at any age, but most commonly affect the age of people between 15 and 60
Race- White people particular those of northern European descendent are of the highest risk of getting MS, people of Asian and African American have the lowest chance
Climate- MS is far more common in temperate climate, including southern Canada, northern United States, and New Zealand

6. Complications Muscle stiffness or spasms
Paralysis, typically in the legs
Problems with bladder, bowel or sexual function