Myasthenia Gravis is an autoimmune disease. Autoimmune diseases occur when the immune system affects the healthy tissue in a negative way. With people afflicted with Myasthenia Gravis, the body creates antibodies that block the muscle cellular network from getting messages from the nerve cells. The cause is unknown. The disease affects more young women and older men. It also can affect people of any age. Suggested lifystle alterations that can help people function during their daily activities. The reccomended changes are: Rest periods throughout the day, wearing an eye patch if the eyes are affected and avoiding stress and exposure to heat.