Myasthenia gravis is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal (voluntary) muscles of the body. The name myasthenia gravis, which is Latin and Greek in origin, literally means "grave muscle weakness." With current therapies, however, most cases of myasthenia gravis are not as "grave" as the name implies. In fact, most individuals with myasthenia gravis have a normal life expectancy.
Mariah Sekich - Life expectancy is the expected number of years of life remaining at a given age. This article discusses what life expectancy is, the average life expectancies for different people and countries, and what can affect life expectancy.