Multiple Sclerosis is a disease which attacks the myelin sheaths coating the nerves in the Central Nervous System. The myelin sheaths are the protective enclosures around the nerves which ensure signals can be carried smoothly between the brain and where it needs to go. But in MS the myelin sheaths are not recognised by the body’s immune system as being ‘friendly’ and instead these features are treated by the immune system as a threat. The immune system then starts to break down the myelin protecting the nerve fibres and damages the nerves. This damage effects every part of the CNS and manifests itself differently in each suffer with MS having a different prognosis. see more about MS here. This total lack of knowledge of how it will effect you personally in the future is very difficult to live with.