我国和世界上许多国家在普查人口时都发现，长寿老人比较集中的地区，多半为海拔１５００米至２０００米的山区，环境清静，气候宜人。例如，位于巴基斯坦东部的罕萨，就是一个被崇山峻岭包围，时常云雾缭绕，终日空气新鲜的长寿村。该村２万人中，年逾百岁的有４０多人，９０ In our country and in many countries in the world, when we surveyed the population, most of the elderly with longevity are found in mountainous areas with altitudes of 1,500 to 2,000 meters. The environment is quiet and the weather is pleasant. For example, Hunza, located in the east of Pakistan, is a longevity village surrounded by mountains and surrounded by misty mountains and always fresh air. Of the 20,000 people in the village, over 40 are over 100, 90