Dr. Nicole Ehrhart is a surgical oncology professor at Colorado State University and heads up the relatively new Center for Healthy Aging where she leads a team of experts to a one health approach to aging. We are discussing stem cell therapy and focus on the good, the bad, and the ugly. We learn new terms like stem cell exhaustion a phenomenon that describes, as we age, the decrease of the number and function of stem cells. We also talk about her passion for surgical oncology and what role CSU plays in the one health approach to tumor treatments.