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生活方式和饮食方式上的细微差异都会对人的寿命长短起作用。人类进入二十世纪以后,平均期望寿命增加了30年,是人类历史5000年以来增长最多的时期。百岁老人(年龄是三位数)并不再罕见了,他们的人口数量从1990年到2000年间增加了51%。有什么原因能够解释如此巨大的“跃进”呢?健康、教育、疾病防控和治疗是首要原因,同时也合乎情理。但日常生活中一些不起眼的生活习惯或是过去成长经历的环境,都会影响到人的寿命。美国《预防》杂志的专家桑德拉·戈登继首次论述人能活百岁的有利因素(见2009年12期《人能活到100岁的种种迹象》)后,最近又总结了关于长寿原因的种种研究结论。
The nuances of lifestyles and eating patterns all contribute to the length of human life. After the mankind entered the twentieth century, the average life expectancy has increased by 30 years, which is the period of human history with the largest growth in 5000 years. It is no longer rare for centenarians (three-digit ages) to increase their population by 51% between 1990 and 2000. Is there any reason to explain such a huge “leap forward”? Health, education, disease prevention and treatment are the primary reasons, but also reasonable. However, some humble life habits in daily life or the environment in which people grew up in the past can affect people’s life expectancy. Sandra Gordon, an expert on prevention in the United States, has discussed for the first time the favorable factors that people can live a hundred years old (see “Signs of Man Being 100 Years Old” in December 2009) The reasons for the various research conclusions.