More than 3,700 days later, he hasn't missed a single day of exercise, though he does take some easier days of light cardio to give his body a chance to recover. The 74-year-old from Rhode Island said the regular routine of combining strength training with cardio has kept him energized, healthy, and strong over time. "I am hardly ever sick, and I don't get headaches. I have maintained my drive, diligence, dedication, and determination all these years," DiMonte told Business Insider in an interview coordinated by Planet Fitness, his gym of choice.