Myasthenia Gravis
Myasthenia Gravis is an autoimmune disease that weakens muscles in the eyelids, face, neck and extremities. This happens because the immune system accidentally produces antibodies that destroy the acetylcholine (ACh) receptors.
The first sign of this disease is drooping of the eyelids and double vision. The treatment for this disease includes drugs that inhibit the enzyme that digests acetylcholine, so that ACh accumulates in neuromuscular junctions.
Woman between the ages of 20-40 and men between the ages of 50-70 are at higher risk to encounter this disease. This disease is neither inherited nor contagious, but it usually effects more than one member of the same family when somebody is diagnosed with it.
Resources:
http://www.anejo.eu/myasthenia-gravis/
Mader, Sylvia S., and Michael Windelspecht. Human Biology. 14th ed. New York: McGraw Hill Education, 2016. Print. pg. 106
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