Myositis is an autoimmune disease where the body attacks healthy muscle fibers causing muscle inflammation, and eventually, loss of strength, functionality and mobility. It can be life-threatening when it affects the lungs and heart, but fortunately, there are medications and therapies to effectively treat the condition.
More than 50,000 people live with myositis in the US and approximately 7,000 people are diagnosed every year. Most people are diagnosed between the ages of 45-64, and certain types of myositis affect women and men disproportionately. African Americans are three times as likely to have myositis over other racial groups.