Myasthenia gravis is a rare autoimmune disease in which the body produces antibodies against the connection between nerves and muscles. As a result, nerve signals reach the muscles less effectively, causing muscles to tire quickly and weaken, especially with repeated activity. The disease can affect muscles throughout the body, including the eyelids, swallowing muscles, and breathing muscles. The name comes from Greek and Latin and literally means 'grave muscle weakness.' The word appears on this site because myasthenia gravis is a chronic condition that is not curable, although there are treatments that can reduce symptoms.
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Medical dictionary
myasthenia gravis
a rare muscle disease in which muscles tire quickly because nerve signals don't reach muscles well.
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