Tea, as a natural drink, is favored by the world. Tea not only contains tea polyphenols with anti-cancer effect, but also contains a small amount of caffeine that can refresh the mind. In addition, it also contains trace elements that can decompose greasy and help digestion.

Why not drink strong tea?

1.Strong tea is easy to hurt the stomach

The content of theophylline in strong tea is relatively high, which will stimulate gastric parietal cells and lead to excessive gastric acid. Drinking strong tea for a long time is easy to cause excessive gastric acid secretion, which will cause extremely adverse consequences for patients with gastric ulcer and duodenal ulcer.
According to statistics, 10% of tea addicts will suffer from nervousness, anxiety and shortness of breath when they drink 2-3 cups of strong tea every day. Caffeine in tea has the drawback of being addictive. It can make people drink more and more, which will damage people's health.

2.Strong tea hinders nutrient absorption

Strong tea also contains a lot of tannic acid, which will hinder the human body's absorption of iron, showing iron deficiency anemia. It will also combine with protein and vitamin B1 in food, leading to constipation. Nutrition experts have found that excessive tea drinking will increase urine output and cause the loss of magnesium, potassium and other important nutrients.

3.Strong tea destroys sleep

Tea contains 2%~5% caffeine, while strong tea contains more caffeine. A cup of strong tea contains about 100 mg of caffeine, so drinking tea, especially strong tea, will make people excited and sleep less.

4.Strong tea injures blood vessels

Excessive caffeine will not only affect sleep, but also cause brain excitement, restlessness, insomnia, palpitations and other discomfort, thus raising blood pressure.