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; Third, lotus leaf, cassia seed, Siraitia grosvenorii, medlar and so on. Boiled all year round, soaked in cuttlefish tea. Keep the human body tee, blood flow, urine flow and defecation flow. "This is Li Qingyuan's secret guide to 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 the secret of Li Qingyuan's longevity for future generations. His diet is mainly rice and a little wine.

The health care and medicinal use of tea are recorded in Shennong Herbal Classic and Compendium of Materia Medica, but the specific origin of Huazhi tea is unknown, and the historical records should come from Hubei. "Compendium of Materia Medica" records that cassia seed has the effects of clearing heat, purging fire and improving eyesight; Lotus leaf has anti-inflammatory and diuretic effects; Siraitia grosvenorii has the effects of relaxing bowels, clearing throat and moistening lung.