While there are no tried and true ways to live to 100 years-old, many factors both genetic and lifestyle-oriented can help you discern your longevity. For instance, you have a far greater chance of living a century if you are born a woman or live in Japan, but centenarians still love to share their secrets for healthy living.
A 103 year-old woman named Ruth attributes her longevity to getting fresh air everyday and not sweating the small stuff. 102 year-old Dorris loved to get out and have a good time while dancing and mingling with friends. There is no way to know for sure how to live to 100 so it is best to live healthy, keep a balanced diet and exercise often.