Leonard Guarente was 38 and previously a tenured professor at Massachusetts Institute of Technological know-how when he made a decision to dedicate himself to Just about the most alluring problems in biology: how to slow down aging. Much more than a few decades afterwards, the 72-yr-aged Guarente is considered a https://www.wsj.com/health/wellness/longevity-antiaging-leonard-guarente-business-f55643f4?mod=health_lead_story