According to NORD, approximately 450,000 individuals in the United States suffer from Polymyalgia Rheumatica. This disorder occurs at the rate of about 50 per 100,000 in people over the age of 50. So what is Polymyalgia Rheumatica? Polymyalgia rheumatica (PMR) is an inflammatory disorder that effects those over the age of 50 and generally more often in individuals over the age of 65. In terms of sign and symptoms, it generally causes muscle pain, aching, and stiffness, espec