在20世纪的20年代,日本人的平均寿命不到45岁。30年代后,日本人平均寿命逐年提高。到20世纪末,日本人就成了人均寿命最长的民族。据日本公布的数字表明,2000年的日本男性平均寿命为77.72岁,女性平均寿命为84.6岁。不到一个世纪,日本已经一跃成为世界上最长寿的国家。这是为什么呢?一、食鱼族 In the 1920s, the average life expectancy of Japanese people was less than 45 years. After the 1930s, the average life expectancy of Japanese people increased year by year. By the end of the twentieth century, the Japanese had become the longest living nation in the world. According to figures released by Japan, the average life expectancy of Japanese men in 2000 was 77.72 years and the average life expectancy of women was 84.6 years. In less than a century, Japan has jumped to become the longest-lived country in the world. This is why? First, eat fish