Multiple Sclerosis

Multiple Sclerosis (MS) is a chronic, autoimmune disease in which the immune system mistakenly attacks the myelin sheath, the protective covering that surrounds nerve fibers in the central nervous system (CNS), which includes the brain and spinal cord. This damage disrupts the flow of electrical signals between the brain and the rest of the body, leading to a wide range of neurological symptoms.

Over time, the damaged areas may form scar tissue (sclerosis), and the underlying nerves themselves may become permanently damaged or deteriorate. While the progression and severity of MS vary widely among individuals, the disease can significantly impact daily life.

How MS Affects the Body

1. Myelin Damage: The immune system attacks myelin, causing inflammation and lesions in the CNS.
2. Disrupted Communication: The damaged myelin slows or blocks the transmission of electrical signals along the nerves.
3. Nerve Deterioration: In advanced stages, the nerves themselves may degenerate, leading to irreversible damage.

Types of MS
MS is categorized into several types based on its progression and the nature of symptoms:

1. Relapsing-Remitting MS (RRMS):
   • The most common form, characterized by periods of new or worsening symptoms (relapses) followed by periods of partial or complete recovery (remissions).
   • About 85% of people with MS are initially diagnosed with RRMS.
2. Secondary Progressive MS (SPMS):
   • May develop after an initial phase of RRMS.
   • Marked by a gradual worsening of symptoms over time, with or without relapses.
3. Primary Progressive MS (PPMS):
   • Affects about 10–15% of individuals with MS.
   • Characterized by a steady progression of symptoms from the onset without distinct relapses or remissions.
4. Progressive-Relapsing MS (PRMS):
   • A rare form of MS that involves a steady progression of symptoms with occasional relapses.