Stephen B. Kritchevsky, PhD, Toby R. Alligood, MD, endowed professor in Geroscience, associate dean for research development and co-director of the Sticht Center for Healthy Aging and Alzheimer’s Prevention at Wake Forest School of Medicine, will give the virtual Medicine Grand Rounds presentation, "Can the Biology of Aging Be Targeted to Improve Human Health?" at noon Tuesday, Dec. 6, online via WebEx.