Smoking
Smoking is injurious to health, but the people having an initial episode of symptoms like numbness in the limbs are more likely to develop the disease if they are smokers. While on the other hand, the nonsmoker people are able to manage their early symptoms and can defeat the disease by proper treatment, but the chances of rehabilitation are lesser for the people having the habit of smoking. As the autoimmune disorder is itself destroying the body organs and tissues and the smoking adds fuel to this destruction leading to the progression of the disease.