What is sarcopenia? The term “sarcopenia” was invented recently by Irwin Rosenberg. In 1989, he first referred to loss of skeletal muscle mass and size as “sarcopenia,” by combining the Greek word for “flesh” (Sarx) with the Greek word for “loss” (penia).  At the time, it was thought that the degenerative process being described was led by the loss of lean muscle mass with aging. Today, it is understood that inactivity causes muscles to lose strength through a process of denervation, the loss of nerve supply that signals muscle cells to act.  It impacts all of us as we age, […]