Leonard Guarente was 38 and by now a tenured professor at Massachusetts Institute of Technology when he chose to dedicate himself to Probably the most alluring challenges in biology: the way to slow down getting old. Over a few many years afterwards, the 72-yr-aged Guarente is considered a grandfather with https://www.wsj.com/health/wellness/longevity-antiaging-leonard-guarente-business-f55643f4?mod=health_lead_story