Won’t Lifting Weights Make Me Big, Bulky and Fat? Dr. Rebecca Manno talks to us about the long-term benefits of gaining muscle and strength. In This VideoRebecca Manno, MD, MHSDr. Manno is an Assistant Professor of Medicine in the Division of Rheumatology. The focus of her research is the effect of inflammatory arthritis and vasculitis on muscle, strength, and function; particularly in older patients.