What do multiple sclerosis and atherosclerosis both refer to?

Multiple sclerosis and atherosclerosis both refer to conditions involving the hardening or damage of tissues, but they affect different parts of the body and have distinct causes and effects.

• Multiple Sclerosis (MS): This is an autoimmune disease that affects the central nervous system, particularly the brain and spinal cord. In MS, the immune system attacks the protective sheath (myelin) that covers nerve fibers, leading to communication problems between the brain and the rest of the body.

• Atherosclerosis: This is a cardiovascular condition where the arteries become narrowed and hardened due to a buildup of plaque, which is made up of fat, cholesterol, and other substances. This can lead to restricted blood flow and increase the risk of heart attack, stroke, and other cardiovascular diseases.

In summary, both conditions involve the hardening of tissues, but MS affects the nervous system, while atherosclerosis affects the cardiovascular system.