Chuck Hagan:

Want to live a long, healthy and happy life?
It’s not all about broccoli or jogging or vitamins, says a noted researcher, who re-examined and updated results of a famous longevity study that started in the 1920s to determine that much of contemporary advice on aging well is wrong.
Wearing your seat belt, watching stress, being cheerful and optimistic — all may be factors in making one’s life more enjoyable,Leslie Martin and co-author Howard Friedman wrote in “The Longevity Project.”
But their study findings “clearly revealed that the best childhood personality predictor of longevity was conscientiousness,” they wrote. People who had aged well tended to have shown — already as children and consistently through life — the qualities of prudence, persistence and organization.