Dr. Michael Roizen on Biological RealAge vs chronological age

Core perspective shared by Dr. Michael Roizen (Cleveland Clinic Wellness Institute): "The RealAge Metric: Quantifying how smoking, physical activity, blood pressure, and whole foods add or subtract actual biological years from your calendar age." Key Works: RealAge: Are You as Young as You Can Be? (1999), What to Eat When (with Dr. Michael Crupain, 2018), The Great Age Reboot (2022).