It’s a lifelong autoimmune neuromuscular disease. It causes certain muscles to weaken easily after you use them. Muscle fatigue typically varies throughout the day (sometimes hour by hour) and gets ...

Myasthenia gravis is a chronic condition that causes muscles to tire and weaken easily. For example, if you have myasthenia gravis, you may notice that during a meal, your jaw muscles become tired and ...

Myasthenia gravis (MG) is an autoimmune disorder that blocks nerve-to-muscle signaling, causing muscle weakness. Weakness often worsens with activity and improves with rest. MG commonly affects the ...