2. If you drink too much tea, the combination of tannic acid and iron will be more active, which will affect the body's absorption of iron, and anemia may occur in the long run.
Excessive drinking tea will increase the burden on human kidneys.
4. Tea contains a lot of caffeine, which will aggravate the condition of patients with gastrointestinal diseases, patients with neurological dysfunction and patients with lung disease.
5. Pregnant women are not suitable for drinking tea. So it is suggested that you can drink some green tea in moderation, but not too much. ?
Extended data:
Drinking tea at 4 time points hurts the kidney and causes cancer.
1, fasting
Because tea contains caffeine and other alkaloids, drinking tea on an empty stomach is easy to make the intestine absorb too much caffeine, which will cause some people to have hyperthyroidism symptoms such as palpitation, dizziness, weakness of hands and feet and trance. People who don't drink tea often, especially those who drink tea on an empty stomach in the morning, are more likely to have the above symptoms. It's called being drunk. Once you get drunk, you can take candy or drink some sugar water to relieve it.
2. When drunk
Tea has the function of exciting the nerve center, and drinking strong tea after drunkenness will increase the burden on the heart. For the elderly with poor heart and kidney function, it is especially forbidden to drink a lot of strong tea after drinking; Eating a lot of fruit or sipping vinegar can be used to speed up human metabolism and relieve drunkenness.
3. Before going to bed
Theophylline and other substances in tea have obvious exciting effect on the central nervous system after being absorbed by the human body. Drinking tea will excite the spirit, affect sleep and even lead to insomnia, especially the newly picked green tea, which has a more obvious effect. Moreover, tea has diuretic effect, and drinking tea before going to bed can easily make the elderly urinate frequently at night, affecting the quality of sleep.
4. During medication
Some elderly people with chronic diseases need to take medicine for a long time, and many drugs should not drink tea during taking. Such as sedative and hypnotic drugs and antiarrhythmic drugs. Theophylline can reduce the analgesic effect of some drugs, so it is not advisable to drink tea when taking analgesic drugs.
People's Network-What's the harm of drinking too much tea every day?