David A. Sinclair, A.O., Ph.D. is a Professor in the Department of Genetics and co-Director of the Paul F. Glenn Center for Biology of Aging Research at Harvard Medical School. He is best known for his work on understanding why we age and how to slow its effects. His book Lifespan is a New York Tines Bestseller and he was on TIME magazine’s list of the “100 most influential people in the world” and “Top 50 in healthcare.” He is a cofounder of numerous biotech companies, TallyHealth and Fully Aligned, a healthcare and communications company.