Although drinking tea can preserve one's health, the unhealthy way of drinking tea not only can't preserve one's health, but will have many adverse effects on the body. For example, drinking tea on an empty stomach and making tea in paper cups are all bad habits.

Tea contains polyphenols, especially polyphenols in green tea. If you drink tea on an empty stomach, it will stimulate your stomach. This is common sense. Many people know that. Drinking tea empty will dilute gastric acid, inhibit the secretion of gastric juice, hinder digestion, and even cause "tea poisoning", such as palpitation, headache, stomach upset, vision, upset, etc., which will affect the absorption of protein and cause gastritis. Get up in the morning, don't drink tea immediately on an empty stomach. Because tea contains caffeine and other alkaloids, drinking tea on an empty stomach can easily make the intestines absorb too much caffeine, which will cause some people to have symptoms of temporary adrenal cortex hyperfunction, such as palpitation, dizziness, weakness of hands and feet, and trance. People who don't drink tea often, especially those who drink strong tea on an empty stomach in the morning, are more likely to have the above symptoms. This is medically called drunk. Once you get drunk, you just need to have a sugar in your mouth or drink some sugar water to relieve it.

Some people use paper cups to make tea water directly to save trouble. The edible wax on the inner wall of the paper cup will dissolve into the tea under the action of hot water, which greatly reduces the taste, color and aroma of the tea. Remind you, more importantly, alcohol can dissolve the ink on the surface of paper cups, and the ink contains benzene harmful substances, which consumers are likely to drink. Drink a cup of strong tea to refresh yourself at work. Because of the caffeine in tea, it stimulates the nervous system. Drinking strong tea will not only cause discomfort of "drinking tea", but also increase the burden on the kidneys; Drinking more strong tea can also cause bone damage. Especially after drinking strong tea, caffeine in tea can quickly play a diuretic role, thus prompting acetaldehyde that has not been decomposed into acetic acid to enter the kidney prematurely, causing kidney damage.

So it can be seen that there are still many exquisite teas. Unhealthy tea drinking habits will have a lot of impact on our health, and only by mastering scientific methods can we play a role in health preservation.