Leonard Guarente was 38 and by now a tenured professor at Massachusetts Institute of Know-how when he chose to devote himself to one of the most alluring complications in biology: the way to decelerate getting older. In excess of three a long time later on, the 72-calendar year-old Guarente is https://www.wsj.com/health/wellness/longevity-antiaging-leonard-guarente-business-f55643f4?mod=health_lead_story