The exact cause of the disease is unknown, but it includes viral infections or an autoimmune response. MS is called the disease of the young because the highest rate of incidence is between the ages of 20 and 40 years old. Women are affected more than men. There are many types of MD but Duchene Muscular Dystrophy is the most common and most severe. A recessive x-linked gene is linked to the cause of this early developmental disease.
Treatment involves physical therapy, braces, Achilles tendon releases, and pulmonary care.
The cause of myasthenia gravis is believed to be an autoimmune response. It is a chronic, progressive disease of muscular weakness. The onset of Parkinson's Disease is insidious and the disease usually affects the elderly. As the disease progresses, management of the signs and symptoms becomes more difficult. The onset of the disease occurs between 10 to 40 years of age.