俗话说:“神仙都怕脑后风。”这句民间俗语流传着一个有关养生保健的民间故事:话说上古有个名叫彭祖的人,他一生经历夏朝至殷末,活了八百余岁,后成仙人。彭祖未成仙时,在今天四川彭县东的一个山洞中修炼闭气术,苦患头痛,找不到原因何在。后来发现修炼的洞中还有个小洞,正对着彭祖脑后,有风从洞口吹入。彭祖用东西塞住这个小洞,此后就不再头痛了。这个美好的传说蕴含了一定的保健道理:脑后风,吹不得! As the saying goes: “The gods are afraid of the brain.” Folk folk saying goes a folk story about health care: the ancient name of a man named Peng Zu, his life experience Xia Dynasty to the end of Yin, live eight Hundreds of years old, immortal after. When Peng Zu did not become immortal, he practiced pneumatology in a cave in the east of Peng County, Sichuan Province today, suffering from headaches and finding out why. Later found that there are still practice a small hole in the hole, is facing Pengzu behind the wind blowing into the hole. Pengzhu stuffed the hole with something, then no longer have a headache. This beautiful legend contains a certain degree of health care theory: brain behind, blowing can not!