Study says 5 cups of tea or coffee a day reduces risk of brain tumors by 40%

People who drink at least five cups of tea or coffee a day are 40% less likely to develop cancer than others.　　Sina Health News According to the Daily Mail, 26th, a new study conducted by Imperial College London suggests that drinking at least 5 cups of coffee or tea a day can help prevent brain tumours. The findings are published in the journal Cancer Epidemiology, Biological indicators and prevention.　　In the course of the experiment, researchers studied more than 300 men and women who were diagnosed with a glioma (a tumor that usually begins to grow from the brain). When they compared the coffee-drinking habits of patients without a brain tumor, they found that those who drank at least five cups of tea or coffee a day were 40% less likely to have cancer than others.　　Caffeine has a greater effect on men's "protection", but scientists are not sure why. One theory is that caffeine reduces the flow of blood to the brain, causing tumours to grow because of hypoxia and nutrients. Decaffeinated tea or coffee does not have the effect. (Yang Xiaowen) Sina Health Exclusive manuscript reproduced please indicate the source