Many people have drunk green tea, which is also a very common type of tea. Like many common teas, green tea has certain health benefits for the human body, and the effects and functions of green tea are also different for different people. For example, for women, green tea also has the effect of beauty and skin care. Of course, this does not mean that green tea can be taken blindly; although green tea has health benefits, there are also many contraindications to pay attention to.

1. Beauty and Skin Care, Anti-aging Effects

The antioxidants in green tea help resist aging. Because the process of human metabolism, if it is overly oxidized, it will produce a large number of free radicals, which are easy to age and can also damage cells. SOD (superoxide dismutase) is a free radical scavenger that can effectively remove excess free radicals and prevent free radicals from damaging the human body. The catechins in green tea can significantly increase the activity of SOD and remove free radicals. The tea polyphenols contained in green tea can also help remove excess facial oil and shrink pores.

2. Effective Anticancer Effects

Tea polyphenols can block the synthesis of various carcinogens such as nitrosamines in the body, and have the effects of directly killing cancer cells and enhancing the body’s immune function. It has an auxiliary and therapeutic effect on various cancers such as colorectal cancer and stomach cancer.

3. Diuretic and Fatigue-relieving Effects

Caffeine in tea can stimulate the kidneys, promoting the rapid excretion of urine from the body, increasing the filtration rate of the kidneys, and reducing the retention time of harmful substances in the kidneys. Caffeine can also expel excessive lactic acid in urine, helping the body to eliminate fatigue as soon as possible.

4. Contraindications

Avoid taking green tea with medicine and drinking tea left overnight. Tea can alleviate the effects of medicine and may precipitate with it, which is not conducive to absorption. It is not advisable to drink tea before or after meals; drinking tea on an empty stomach can stimulate and damage the gastric mucosa. It is not recommended to drink strong tea at night; in severe cases, it can lead to insomnia.