translation.en: Well, our approach to finding longevity was to team up with National Geographic, and the National Institute on Aging, to find the four demographically confirmed areas that are geographically defined.
translation.zh: 我们找到健康长寿秘诀的研究方法是 与《国家地理》杂志 和国家老龄化研究院的研究人员合作© 找出四个人口统计学信息确切的 并且有明确的地理界线 的地区™