Do you want to be fit into your 90s? Most people think being fit requires hours of working out in the gym. Air Marshal P.V. Iyer, a 92-year-old runner, tells us how we can make fitness part of our everyday activities at any age, leaving sufficient time for leisure. At the age of 47, when Air Marshal Iyer was confronted with the Indian Air Force’s new policy demanding minimum age-specific physical fitness to be eligible for promotion, he set out to pass the test. In the course of his training it dawned on him that every one of us, irrespective of age and lifestyle, can become fit and it’s never too late to learn new habits.