Green tea contains predominant polyphenols that have antioxidant activity. Scientists believe that these polyphenols, particularly EGCG and ECG, contain free radicals, which can protect cells from DNA damage caused by reactive oxygen species. They also have the ability to inhibit the proliferation of body cells and protect against ultraviolet (UV) damage. radiation and improve immune system function. Additionally, green tea has been shown to activate enzymes responsible for detoxification, such as glutathione S-transferase and quinone reductase, which in turn help protect against the development of tumors. Dr. David Servan-Schreiber, MD, PhD, had cancer and recovered after several treatments. So he decided to learn everything he could about a lifestyle that would help him prevent and fight cancer. After 25 years, he knew he had a way to fight and prevent cancer in his book Anticancer: Say No to Plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay A New Way of Life The first food he mentioned in his book is green tea. After that, he mentions the spice turmeric and then mushrooms. Therefore, the first section is titled “Green Tea Blocks Tissue Invasion and Angiogenesis.” Studies linking tea to cancer prevention. According to numerous studies, animal studies have shown that tea polyphenols inhibit the formation of cancer cells in different organs, including the skin, lungs, liver, esophagus, stomach, small intestine and the mammary gland. On the other hand, the results of human studies have not been conclusive. The link between tea (tea polyphenols) and precancerous lesions. The first study evaluated the effects of tea polyphenols on precancerous oral lesions. But this was a double-blind intervention trial. It involved 59 participants with leukoplakia (a putative precursor lesion to oral cancer). The participants were divided into two groups. The first group was to receive 3 grams of a tea mixture orally and topically. On the other hand, the other group received 3 grams of placebo. After 6 months, 38 percent of participants in the first group showed partial regression of oral lesions, compared to only 10 percent of participants in the placebo group. In addition, participants in the first group showed a smaller increase in lesion size (3%) than in the placebo group (7%). On the other hand, a second trial included 39 people with high-risk precancerous oral lesions. Some of them received 500 mg of green tea per square meter of body surface area (mg/m2), and the rest received a placebo three times a day for 12 weeks. At the end of the trial, there were no differences in lesion responses between groups. The link between tea and 8-OHDG Additionally, researchers have conducted trials to examine the effect of tea on the level of 8-hydroxydeoxyguanosine (8-OHdG) in urine. 8-HODG is a biomarker of oxidative DNA damage that may be an indicator of increased cancer risk. They found that the amount of 8-OHdG in urine is higher in people with many types of cancer than in healthy subjects. Furthermore, 8-OHdG content was higher in many tissues than in adjacent non-tumor tissues. There were about 130 heavy smokers. During the trial, they were to receive 4 cups of one of the following drinks every day for 4 months: decaffeinated green tea, black tea or water. After 4 months, those who drank green tea..