Multiple Sclerosis (MS)
Multiple sclerosis (MS) is a progressive neurological disease that can affect the central nervous system (CNS). Millions of nerve cells in the brain send signals throughout the body to control movement, sensation, memory, cognition, and speech. Every time you take a step, blink, or move your arm, your CNS is at work.
Nerve cells communicate by sending electrical signals via nerve fibers. A layer called the myelin sheath covers and protects these fibers. It ensures that each nerve cell properly reaches its intended target.Immune cells mistakenly attack and damage the myelin sheath in people with MS. This damage results in the disruption of nerve signals.
What Causes MS?
Damaged nerve signals can cause debilitating symptoms, including:
- walking and coordination problems
- muscle weakness
- vision problems
MS affects everyone differently. The severity of the disease and the types of symptoms vary from person to person. The exact cause of MS is unknown. However, scientists believe that four factors may play a role in the development of the disease