Areca catechu is one of the four southern medicines in China. Areca catechu has been planted in Hainan for 500 years. Mainly distributed in Qiongzhong, Tunchang, Ding 'an, Lingshui, Yaxian and other places. Areca catechu is an evergreen tree in Palmae, which is as branchless and graceful as coconut trees, but more elegant than coconut trees. The seed of areca catechu is called areca catechu, which contains arecoline and tannic acid and can be eaten. Its medicinal value is very high. Traditional Chinese medicine is used to treat insect accumulation, dyspepsia, abdominal distension and pain, edema and beriberi. Its peel is called "big skin support", which can promote qi circulation, benefit water and reduce swelling. Besides fruit, leaves can also be eaten. Eat areca has become an important custom in Wanning, Lingshui and Sanya. After sliced betel nut, dip it in seasoning, chew it carefully, spit green water, be reborn, and blush after eating, which is Dongpo's impromptu poem "Two blushes are charming, Nong is drunk with betel nut". Betel nut is essential for festivals, marriage proposals, engagements and weddings. I don't know how much tannic acid there is in betel nut, but the use of tannic acid is taboo. Tannic acid (tannic acid) will precipitate protein, which is generally used as liniment when the skin surface is injured, but excessive use will cause absorption poisoning. Areca catechu is one of the four southern medicines in China. Areca nut contains many nutrients and beneficial substances needed by human body, such as fat, areca oil, alkaloids, catechins, choline and so on. Areca catechu has a unique function of preventing dysentery, which is the medicine fruit of doctors in past dynasties and is also known as "Xizudan". Because boils are generally related to irregular diet and qi stagnation, betel nut has been widely concerned for its medicinal properties because it can reduce qi, promote digestion and resolve phlegm. Even poets have a soft spot for betel nuts. Su Dongpo, one of the eight masters in the Tang and Song Dynasties, once wrote a famous sentence, "Red tides on the cheeks drunk betel nuts". Fresh betel nut has the wonderful effect that "hunger can make people full, and fullness can make people hungry". When eating on an empty stomach, it is full of qi and easy to digest after a meal, which can be described as a fairy fruit on earth. Li Shizhen, a medical scientist, recorded in Compendium of Materia Medica that Areca catechu has many diseases, such as "reducing edema, dredging joints, invigorating spleen and regulating middle energizer, and treating heartache". Areca catechu is the fruit of Areca catechu, which belongs to Palmae with coconut. Mainly born in Asia and East Africa, originally from Malaysia. Areca catechu is one of the important medicinal plants. In many parts of Asia, such as Taiwan Province Province and India, there is a habit of chewing betel nut. Areca catechu is a palm plant with English names of Areca catechu, Areca catechu and Areca catechu. In China, it mainly grows in Hainan, Taiwan Province Province and other tropical coastal areas. The seeds of betel nut have many names, such as kernel frequency and betel nut. Since ancient times, betel nut has been a good fruit for residents in the southeast coastal provinces of China to welcome guests and entertain relatives and friends. In ancient times, honored guests as "guests" and "lang", hence the name "betel nut". There are four levels of hospitality in Hainan: "tea, cigarettes, wine and betel nut". Betel nut will only be served on important festivals such as welcoming VIPs and weddings, which shows its status. At present, with the expansion of betel nut planting area and the love of more and more friends, betel nut has spread to people's daily consumption. Areca catechu is one of the four southern medicines in China. Areca nut contains many nutrients and beneficial substances needed by human body, such as fat, areca oil, alkaloids, catechins, choline and so on. Areca catechu has a unique function of preventing dysentery, which is the medicine fruit of doctors in past dynasties and is also known as "Xizudan". Because boils are generally related to irregular diet and qi stagnation, betel nut has been widely concerned for its medicinal properties because it can reduce qi, promote digestion and resolve phlegm. Even poets have a soft spot for betel nuts. Su Dongpo, one of the eight masters in the Tang and Song Dynasties, once wrote a famous sentence, "Red tides on the cheeks drunk betel nuts". Fresh betel nut has the wonderful effect that "hunger can make people full, and fullness can make people hungry". When eating on an empty stomach, it is full of qi and easy to digest after a meal, which can be described as a fairy fruit on earth. Li Shizhen, a medical scientist, recorded in Compendium of Materia Medica that Areca catechu has many diseases, such as "reducing edema, dredging joints, invigorating spleen and regulating middle energizer, and treating heartache". Not only that, betel nut also has the effect of treating glaucoma, hypertension and expelling insects.

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