Su Zhe enjoys a high reputation in the literary world, and at the same time, he is quite accomplished in using traditional Chinese medicine to preserve health. It is said that Su Zhe's teenager is ill, his spleen is too hungry in summer and his lungs are too cold in autumn. At the age of 32, Su Zhe ate poria cocos and got well a year later. Since then, he began to study drug health. He believes that Poria cocos is a treasure of nourishing the kidney and strengthening the spleen, which can "break the strange evil in a moment of urgency". Therefore, he wrote "Taking Poria cocos as a guide" and wrote: "Turpentine into the ground is Poria cocos, and Poria cocos is amber for thousands of years. Taking poria cocos can strengthen the body and replenish qi, prolong life and get rid of old age. "

Poria cocos is flat in nature, light and sweet in taste, and has the functions of invigorating spleen, calming nerves, promoting diuresis and eliminating dampness, and is mainly used for treating diarrhea due to spleen deficiency, palpitation and insomnia, dysuria and edema. 1700 years ago, Shennong's "Materia Medica" listed Poria as the top grade, pointing out that "long-term service to soothe the nerves will not prolong life."

The life span of Empress Dowager Cixi is 74 years old. One of the reasons for her long life is that she insists on medicinal diet. Judging from the published 13 medicated diet, the frequency of using poria cocos medicated diet is the highest, reaching more than 78%. At that time, Empress Dowager Cixi took the advice of Doctor Tai and ordered the royal chef to make "Poria Cake" with refined white flour and Poria powder.

The reason why Poria cocos is especially favored by doctors is scientifically based. According to modern medical tests, Poria cocos is also rich in ergosterol, pachymic acid and lecithin. The detection of these components confirmed the correctness of poria cocos for longevity and nourishing. Poria cocos polysaccharide can not only enhance human immune function, but also has a strong anti-cancer effect.

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