Final answer:
Multiple Sclerosis (MS) is an autoimmune disease that usually strikes younger adults, especially females, and is associated with the destruction of the myelin sheath in the central nervous system, leading to a range of debilitating symptoms. There is no cure, but symptoms can often be managed.
Step-by-step explanation:
Multiple sclerosis (MS) is most commonly associated with adults, particularly younger adults. MS is an autoimmune disease that involves the immune system attacking the myelin sheath in the central nervous system. This disease primarily targets the cells that produce and maintain the myelin, which are the oligodendrocytes. MS symptoms can be very debilitating and include issues such as fatigue, vision problems, muscle weakness, impaired coordination and balance, as well as cognitive and memory difficulties. It strikes more frequently in younger adults and is especially prevalent in females. Factors contributing to MS may include infections, environmental influences, geographic location, and genetics. Currently, there is no cure for MS, but there are treatments available that can help manage the symptoms and modify the course of the disease.