Understanding Myasthenia Gravis During MG Awareness Month Understanding Myasthenia Gravis During MG Awareness Month June is Myasthenia Gravis Awareness Month. It's a chronic autoimmune disease that affects upwards of 60,000 Americans, usually, men over the age of 50. Understanding Myasthenia Gravis During MG Awareness MonthTani Sussman2025-08-01T11:24:56-04:00