Spinal muscular atrophy (SMA) is a heartbreaking genetic disorder that usually occurs in infancy. Sometimes, though, the condition, characterized by weakness and wasting muscle, isn’t detected until adulthood. According to the U.S. Library of Medicine, SMA is usually most severe in muscles near the center of the body; it is less severe in muscles away… Continue reading What You Need to Know about Spinal Muscular Atrophy