Although drinking tea is good, but for some special people, drinking tea often has some disadvantages. Compared with the advantages and disadvantages, drinking tea may be better.

1. Constipation. Tea polyphenols in tea have a certain astringent effect on the gastrointestinal mucosa, which will affect the digestion and absorption of food, make the stool dry, and increase constipation.

2. Neurasthenia and insomnia. The caffeine in tea has a significant excitatory effect on the central nervous system of the human body. Drinking tea, especially strong tea, will leave the brain in an over-excited state without rest.

3. Anemia. The tannic acid in tea leaves the iron in the food to form a precipitate that is not absorbed by the body.

4. People who lack calcium or fractures. The alkaloids in tea can inhibit the absorption of calcium by the duodenum. At the same time, it can also promote the excretion of calcium in the urine, so that the body's calcium is less in and more out, leading to calcium deficiency or osteoporosis, making fractures difficult to recover.

5. People with gastric ulcers. There is a kind of phosphodiesterase in the stomach that can inhibit the secretion of gastric acid by gastric parietal cells, and theophylline in tea will reduce the activity of phosphodiesterase and make gastric parietal cells secrete a large amount of gastric acid.

6. Gout patients. Tannic acid in tea water will aggravate the patient's condition, so it is not suitable to drink tea, and it is not suitable to drink tea that has been brewed for too long.

7. People with high blood pressure or heart disease. Tea contains caffeine, which has a strong excitatory effect on the human body, and this process of excitement will affect the physiological activities of the body and improve some basic metabolism.

8. Fever patients: When a person has a fever, their heart rate will be faster, their blood pressure will be higher than usual, and theophylline will increase their temperature more quickly. In addition, tannic acid will directly affect the discharge of sweat, preventing normal heat release.

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Author's Bio: 

Salesman of Naturalpuerh company who loves tea for life!