Answer :
Final answer:
Multiple Sclerosis (MS) is a chronic and progressive neurodegenerative disease affecting the myelin sheath of neurons in the nervous system, leading to a variety of symptoms without a known cure.
Explanation:
Multiple Sclerosis (MS) is indeed a chronic, progressive, degenerative disease that impacts the nervous system. It affects the myelin sheath that insulates nerve cells in the brain and spinal cord, leading to a deterioration of neuronal communication. This can cause a wide array of symptoms such as physical disabilities, fatigue, vision problems, and cognitive deficits.
MS progression can occur in isolated attacks or through a slower degenerative progression, in which permanent damage accumulates over time. Despite potential for some functions to be relearned via network plasticity, there is currently no cure for MS, and it is considered a neurodegenerative disease, alongside others such as Alzheimer's and Parkinson's diseases.
