Muscle Disease

One type of muscle disease is Amyotrophic Lateral Sclerosis or ALS. It is also known as Lou Gehrig's disease in the United States. ALS affects part of the nervous system that controls voluntary muscle movement. Motor neurons are lost over time and they muscle the neurons control become weak and eventually nonfunctional. There is no known cause for most cases of ALS but some believe it is due to genetics. Some symptoms of this disease are muscle twitches and cramps, along with weak and soft muscles. It can be tight and spastic as well. Symptoms become worse as the disease progresses. Once in the late-stage, most voluntary muscles are paralyzed. Life for those with ALS have improved because of the medical and technological advances. While researchers do not know a definite cause for this disease, they are currently researching it and found many significant breakthroughs. One important discovery would be that they isolated the genes responsible for causing majority of the familial forms.

Sources:https://www.mda.org/disease/amyotrophic-lateral-sclerosis