People who live longer and disease free have several life lessons to teach. From living a stress free life to adopting healthy eating practices, people who live beyond 100 years certainly realise that discipline is the key to longevity. People who live longer and disease free have several life lessons to teach. From living a stress free life to adopting healthy eating practices, people who live beyond 100 years certainly realise that discipline is the key to longevity. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle