Drinking tea causes stomach pain and insomnia mainly because tea itself contains raw water, crystal water and other bad ingredients. If these two ingredients are not completely baked, it is easy to cause stomach pain or insomnia. People with sensitive stomach had better not drink crude tea, because there is a lot of raw water and crystal water in crude tea, and the stomach will start to feel uncomfortable. You can drink tea on an empty stomach or before going to bed. Just don't drink too much tea before going to bed. It is healthy to drink tea in a timely and appropriate amount. As long as you can carefully choose the tea that suits your physique, you won't have any physical discomfort and won't cause gastrointestinal pain.
According to personal constitution, the stomach and intestines are sensitive people. Try to drink tea with heavy roasting fire, such as 2-minute fire, 3-minute fire, 8-minute fire, cooked tea and old tea. According to personal taste, roasted tea is mild in nature, and there will be no side effects of stomach pain or insomnia after long-term drinking. ~ Xinghua famous tea ~
It is not advisable to drink tea on an empty stomach in the morning.
Get up in the morning, don't drink tea on an empty stomach immediately. 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.
Middle-aged and elderly people with gastric and duodenal ulcers should not drink tea on an empty stomach in the morning, especially strong tea. Because too much tannic acid will stimulate gastrointestinal mucosa, aggravate the condition, and some will have indigestion or constipation.
In addition, most tea leaves contain fluoride, and drinking tea on an empty stomach can easily lead to excessive fluoride intake. If fluoride accumulates too much in human body, it may cause intestinal diseases, weaken muscle elasticity, damage life function, damage teeth and even have toxic effects on bones. According to the determination, brick tea leached 0.25 mg of fluorine per gram, while tender tea only leached 0.06 mg of fluorine per gram. Under normal circumstances, using 3 to 10g of tea every day, according to the above data, obviously will not increase excessive fluoride in the human body. But drinking tea on an empty stomach in the morning, especially strong tea, may lead to chronic fluorosis for a long time, causing the above symptoms.