重庆市的长寿区原本是一个县,最早叫做乐温县,“长寿县”这个名字是在唐朝时改成的,这其中还有一个故事与中药何首乌有关。据说唐朝当时的宰相戴渠享是四川人,有一次回家探亲的途中经过乐温县,看见一个七、八十岁的老人挑着一担水,从台阶上走上走下,健步如飞。随后又看到一位百岁老人挎着油瓶和篮子,也是身轻如燕,不见任何疲惫之色。戴渠享感到纳闷,一问之下才知,那位百岁老人居 The Changshou District of Chongqing was originally a county. The earliest county was called Lewen County. The name Changshou County was changed during the Tang Dynasty. There is also a story related to the Chinese medicine Radix Polygoni multiflori. It is said that the prime minister of the Tang Dynasty Dai Quxiang was a native of Sichuan. He once went home to visit his relatives and passed through Lewen County. He saw a seven- to eighty-year-old man carrying a torrent of water and walked up and down the steps. Then he saw a hundred-year-old man carrying oil bottles and baskets. He was as light as a swallow, and he did not see any fatigue. Dai Quxiang feels puzzled. He only knows when he asks.