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Li Qingyuan, born in the 18th year of Qing Emperor Kangxi, died in the 24th year of the Republic of China (1679- 1935) at the age of 256. Li Qingyuan was born in Yunnan, and settled in Kaixian County, Sichuan in his 90s, until his death. Liu Chengxun, a native of Kaixian County, Sichuan Province, paid a special visit to the old man on 1925. Liu's interview and reminiscence articles were published in the sixth issue of Qigong magazine 1986, and there was also 1000 words of Immortality dictated by the birthday girl. After the death of the old man, some newspapers in Beijing reported on the topic of "the longest-lived person on earth", but it was doubted and denied by Guinness World Records at that time, and was later confirmed by many textual researches.

He thinks there are three reasons for his health and longevity: first, he has been a vegetarian for a long time; Second, keep your heart calm and cheerful; Three, long-term use of black beans, purslane, celery, honeysuckle, hawthorn, green tea, seaweed, chrysanthemum and so on. It is named "Bai Cao Chang Sheng Fang" to maintain the three links of human blood, urine and stool. This is the secret of Li Qingyuan's longevity for future generations. He always believes that maintaining a calm and peaceful mentality and "three links" are necessary conditions for longevity. Keep a calm mind, sit like a turtle, walk like a bird and sleep like a dog. "This is Li Qingyuan's secret guide to longevity for future generations. His diet is mainly rice and a little wine.