Some scientific studies at home and abroad show that human aging is related to the peroxidation of unsaturated fatty acids in the body, and the peroxidation of unsaturated fatty acids is related to the action of free radicals. Free radicals with high chemical activity can make unsaturated fatty acids over-oxidized, make cell function mutate or decline, cause tissue proliferation and necrosis, and produce fatal diseases. Lipid peroxidation is the devil of human health, but the culprit is free radicals. As long as free radicals are removed, cells can grow and develop normally, and live a long and healthy life.
At present, the commonly used antioxidants are vitamin C and vitamin E, which can effectively prevent the excessive oxidation of unsaturated fatty acids. However, recent research in Japan shows that polyphenols in Tieguanyin can prevent excessive oxidation; Purine alkaloids can indirectly scavenge free radicals, thus achieving the purpose of delaying aging.
(B) the anti-cancer effect of Tieguanyin
Cancer is an "incurable disease" that seriously threatens people's health today. Therefore, in recent years, the anti-cancer research of tea has aroused great interest and concern. In recent years, it has been reported that the esophagus of Shanghai residents is decreasing year by year because of drinking tea. Therefore, the fact that drinking tea can prevent cancer has aroused great repercussions all over the world. Nowadays, drinking tea to prevent cancer has been recognized by the world, and Tieguanyin is the best anticancer effect in tea.
As early as 1983, Professor Tuonan Okuda of Okayama University in Japan screened the anticancer effects of dozens of plant polyphenols. The results showed that catechin (EGCG) had strong anticancer activity. Another scientist believes that Tieguanyin tea polyphenols are the main active ingredient in the study of confirming Tieguanyin's anti-mutation. In the study of chemical carcinogenesis, the anti-cancer effect of Tieguanyin tea polyphenols has been affirmed. In addition, vitamin C and vitamin E in Tieguanyin can block the synthesis of nitrosamines, which plays a great role in the prevention and treatment of cancer.
(3) The anti-arteriosclerosis effect of Tieguanyin.
With the development of social material civilization, people's diet structure is constantly changing. The consumption of high-fat and high-sugar foods has increased year by year, and the patients with hyperlipidemia and arteriosclerosis have also increased significantly. According to recent clinical statistics, one of the causes of arteriosclerosis is the oxidation of low-density lipoprotein in blood. Therefore, many clinicians advocate that lowering low-density lipoprotein in blood or inhibiting its oxidation is an effective method to prevent arteriosclerosis.
1999 May 3 1, at the 4th Symposium on Oolong Tea and Health held in Tokyo, Japan, Vice President Chen Ling of Fujian Institute of Traditional Chinese Medicine reported that they took 25 patients with hyperlipidemia and obesity as clinical observation objects to explore the effect of drinking oolong tea Tieguanyin on inhibiting the oxidation of low-density lipoprotein in blood and improving lipid metabolism. Studies have proved that tea polyphenols and vitamins in Tieguanyin can inhibit the oxidation of low-density lipoprotein in blood. Dr. Masahiko Hara of Mitsui Institute of Agriculture and Forestry in Japan has also confirmed in many years' research that tea polyphenols can not only reduce cholesterol in blood, but also significantly increase the ratio of high-density lipoprotein to low-density lipoprotein in blood. Caffeine can relax blood vessels, speed up breathing, reduce blood lipids, and has a certain effect on the prevention and treatment of cardiovascular and cerebrovascular diseases such as coronary heart disease, hypertension and arteriosclerosis.
According to 1974 survey of farmers in Anxi Tea Township 1080, Fujian Province, the ratio of drinking Tieguanyin to the incidence of coronary heart disease is: the incidence of not drinking tea is 3.1%; Occasionally drinking tea is 2.3%; Drinking tea all the year round (more than 3 years) is 1.4%. It can be seen that people who often drink Tieguanyin have lower incidence of coronary heart disease than those who don't drink Tieguanyin.
Preventive and therapeutic effects of Tieguanyin on diabetes mellitus
Diabetes is a worldwide disease. At present, about 200 million people in the world suffer from diabetes, and more than 30 million people in China suffer from diabetes. Diabetes mellitus is a chronic progressive disease with disorder of glucose metabolism. The typical clinical manifestations are "three more and one less", that is, drinking more, urinating more, eating more and wasting away, and feeling weak all over. This disease is called "diabetes" in Chinese medicine and belongs to the category of hot and humid heat. The main cause of illness is the lack of polyphenols, such as vitamin B 1, pantothenic acid, phosphoric acid, methyl salicylate, etc., which makes the sugar metabolism disorder, the blood sugar in the body rises sharply, and the metabolic effect is weakened.
The clinical experiments of Nana Ogawa Takeichiro, a Japanese doctor of medicine, and others have confirmed that drinking tea regularly can supplement the contents of vitamin B 1, pantothenic acid, phosphoric acid, methyl salicylate and polyphenols in human body in time, which can prevent the occurrence of diabetes. For patients with moderate and mild diabetes, blood sugar and urine sugar can be reduced to very little or completely normal; For patients with severe diabetes, it can reduce blood sugar and urine sugar and relieve various main symptoms.
2 The efficacy of Anxi Tieguanyin
(E) Tieguanyin's slimming and bodybuilding function
Obesity is a nutritional disorder accompanied by the continuous improvement of people's living standards, which is caused by excessive nutrient intake or insufficient use of energy stored in the body. Obesity not only brings inconvenience to people's daily life, but also causes cardiovascular diseases and diabetes.
In recent years, people in developed countries are very concerned about how to lose weight, and have introduced various weight-loss exercises, diet methods and drug therapies, among which many slimming teas have also been introduced. In clinical application, most people think that drinking Tieguanyin is an ideal way to lose weight. The clinical experiment of oolong tea was conducted in Chihiro Nakamura's laboratory of Cihui Medical University in Japan. Experiments show that drinking oolong tea regularly can reduce cholesterol and neutral fat in blood, and has the functions of lowering blood pressure, preventing and treating coronary heart disease, losing weight and keeping fit.
Chen Zangqi's Collection of Materia Medica in the Tang Dynasty said: "Drinking tea for a long time makes people thin and fat-free." It has been recorded in medical books of past dynasties in China that drinking tea for a long time can relieve boredom, reduce fat and lose weight, which shows that tea has been found to have a weight loss effect very early in China. In recent years, the clinical research results of drinking tea to lose weight are constantly emerging. During the period of 1996, Fujian Institute of Traditional Chinese Medicine conducted a study on the slimming effect of drinking Tieguanyin on 102 adult simple obese men and women. Studies have shown that Tieguanyin contains a lot of tea polyphenols, which can not only improve the function of lipolytic enzyme, but also promote the metabolic activity of neutral lipase in tissues. Therefore, drinking Tieguanyin can improve the body shape of obese people, effectively reduce the subcutaneous fat and waist circumference of obese people and lose weight.
People's Hospital of Quanzhou City, Fujian Province used Tieguanyin slimming tea to treat 164 obese patients, taking slimming tea 12 ~ 14g every day, 15 days as a course of treatment. After two courses of observation, the patients' blood lipid, triglyceride and cholesterol decreased obviously, and their weight also decreased, and the total effective rate reached over 70%.
(VI) The role of Tieguanyin in the prevention and treatment of dental caries.
It is generally believed that there are two main diseases that harm people's teeth, one is dental caries and the other is periodontitis. Dental caries, commonly known as tooth decay, is a common and frequently-occurring disease in dentistry. There are many reasons for dental caries, one of which is that teeth are poorly calcified, the texture is not hard enough, and it is easy to be damaged. Drinking tea can protect teeth, which has been used for a long time in ancient China. Su Dongpo in Song Dynasty said in Tea Theory: "Gargling with strong tea can not only relieve annoyance, but also strengthen teeth and eliminate smoking addiction." According to modern scientific analysis, Tieguanyin is rich in fluorine, but the fluorine content in general food is very small. About 40%~80% fluoride in Tieguanyin is soluble in water, which is easy to combine with calcium in teeth and form a layer of calcium fluoride on the surface of teeth, which plays a role in preventing acid and caries.
In Japan, the dental caries rate of school-age children in two neighboring villages was investigated. The results show that drinking Tieguanyin has a good preventive and therapeutic effect on dental caries. Every child who goes to school drinks a cup of Tieguanyin every day. If the fluorine content is 0.4 mg, for one year, half of the children suffering from dental caries will be cured. According to Japanese statistics, there are 100 primary school students with dental caries. After drinking Tieguanyin, 55% of the students' dental caries were obviously relieved. It can be seen that drinking Tieguanyin has a preventive effect on people without dental caries and a therapeutic effect on people with dental caries.
(7) The bactericidal and dysentery-stopping effect of Tieguanyin.
Tieguanyin has long been used to treat dysentery and neck pain in Anxi. There are also many records about the treatment of bacillary dysentery, dysentery, dysentery, acute enteritis and acute gastritis with tea in ancient medical books in China. Why can Tieguanyin play a role in sterilizing and stopping dysentery? Mainly tea polyphenols. Because tea polyphenols enter the gastrointestinal tract, it can relax the nervous function of the intestine and relieve the intestinal movement; At the same time, it can coagulate the intestinal protein, because the bacteria themselves are composed of protein. When tea polyphenols meet bacterial protein, bacteria will die immediately, which plays a role in protecting gastric mucosa, so it has the effect of treating enteritis.
According to British Pharmacopoeia, after tea leaves enter the stomach, tea polyphenols can combine with alkali and protein to form tannins. When protein or other concentrated proteins are digested, tea polyphenols are released and then combined with other substances to enter the small intestine (small intestine is alkaline). Tea polyphenols coagulate protein and reduce secretion, so tea can treat dysentery. 196 1 year, epidemic dysentery occurred in Japan, and tea was widely used as an anti-epidemic agent.
(8) The effect of Tieguanyin in clearing away heat and reducing fire.
Tea is a good drink for heatstroke prevention and cooling. Li Shizhen's "Compendium of Materia Medica" said: "Tea is bitter and cold, but ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………. "In the dog days of midsummer, it's cool and hot. Drinking a cool Tieguanyin or a hot Tieguanyin will make you cool physically and mentally, and bring forth body fluid to relieve summer heat. This is because tea soup contains tea polyphenols, sugars, amino acids, pectin, vitamins and so on. It reacts chemically with saliva in the mouth to moisten the mouth, so it can play the role of promoting fluid production and quenching thirst. At the same time, due to the caffeine in Tieguanyin, the pores of human skin release a lot of energy. It is reported that drinking a cup of hot tea can sweat through human skin pores, which is equivalent to 50 times of this cup of tea, so it can make people feel cool and relieve summer heat.
(9) Tieguanyin's refreshing function
It is almost known that drinking tea can refresh you. There are many medical books in China in the past dynasties, and all the literati and monks in the past dynasties waved their wonderful pens and praised the refreshing and beneficial effects of tea. Bai Juyi's poem "To the Thirteen Kings of the East" said: "Chi Pan's moon is hand in hand, and bamboo is blowing. Drive away the sorrow and know the strength of the wine, and break the sleep and see the tea. " This poem clearly mentions the efficacy of tea in refreshing and breaking sleep. Su Dongpo's poem said: "Make thirty cups of tea, regardless of taste, and pack laymen with monks who beat sand people." He said that he would give the tea to Bao Jushi and let him drink it to avoid falling asleep during meditation. Drinking tea can be beneficial to people's thinking and is loved by people, especially some writers, poets and other mental workers. For example, Balzac, a great French writer, Han, a Chinese-American woman writer, and Yao, a famous writer in China, all like drinking tea to help their writing.
Tieguanyin can refresh the mind, and its function mainly lies in caffeine in tea. Caffeine can excite the central nervous system, improve thinking and improve efficiency. Therefore, drinking tea can break sleep, refresh and relieve boredom, clear the mind, improve thinking, and significantly improve oral defense ability and mathematical thinking response. At the same time, Tieguanyin contains polyphenols and other compounds, which counteracts the adverse effects of pure caffeine on human body. This is also one of the important reasons for the long history, enduring and continuous development of tea drinking.
(10) tieguanyin's sober-up and anti-smoking effects.
It is also a well-known fact that tea can sober up and fight against cigarettes. Wang Yangming, a philosopher in the Ming Dynasty, famously said, "Just like being drunk, you need tea to sober up", which shows that our people have long recognized the efficacy of drinking tea to sober up. The ancients often "drown their sorrows by drinking" and "sober up with tea". Liu Yuxi, a poet in the Tang Dynasty, was drunk one day and remembered that Bai Juyi had "six teas" to sober up, so he sent someone to give him some tea to sober up, which was passed down as a tea affair by later generations.
The main component of wine is alcohol, and a glass of wine contains alcohol 10%~70%. Alcohol can add fun, but it will paralyze the nerves and bring discomfort and trance after drinking. If you drink too much liquor, you will vomit and even get alcoholic poisoning. Tieguanyin does have the effect of hangover, because tea polyphenols and ethanol (the main component of wine) can offset each other, so drinking tea can hangover.
Tieguanyin can not only sober up, but also fight against cigarettes. Because Tieguanyin contains a phenolic acid substance, it can precipitate nicotine in tobacco and excrete it. At the same time, caffeine in Tieguanyin can improve the metabolism of drugs in the liver, promote blood circulation, expel nicotine from human blood from urine, and alleviate and eliminate the side effects caused by nicotine. Of course, this effect is not only the single effect of caffeine, but also the synergistic effect of tea polyphenols, vitamin C and other ingredients.