Drinking tea regularly every day has the benefits of refreshing and rehydrating. However, regular consumption of strong tea can stimulate the stomach and intestines, which can lead to insomnia, anemia and other problems. Drinking tea regularly has the effect of refreshing and rejuvenating the brain, replenishing water, and can relieve fatigue. Tea polyphenols in tea are good antioxidant components, moderate consumption of tea is conducive to the fight against oxidation products in the metabolism, contributing to health. Therefore, drinking light tea in moderation has no particular side effects on the body. Some people like to drink different types of tea according to the seasons, such as flower tea in spring, green tea in summer, oolong tea in fall, pu-erh tea in winter, etc., which can delight the body and mind. However, if you often drink strong tea, it will affect the absorption of iron, which may lead to the occurrence of iron deficiency anemia in the long run. In addition, tea contains caffeine, if you drink strong tea at night is likely to lead to insomnia. It should be noted that some drugs can not be taken at the same time and tea, so as not to affect the efficacy of the drug.