Once we had followed our men all the way into their 80s, we wanted to look back at them at midlife and to see if we could predict who was going to grow into a happy, healthy octogenarian and who wasn't.
Una volta che abbiamo seguito i nostri uomini fino agli 80 anni, abbiamo volute rivisionare  la loro mezza età per capire se potevamo predire chi sarebbe diventato un ottuagenario felice e in salute e chi invece no.