There is a science to drinking tea at the right time. Is it good to drink tea at night?

For men, drinking tea is a very good way to maintain health. Different teas have different benefits. For example, drinking green tea can clear away heat and heat, drinking black tea can warm up the kidney yang, etc. Of course, the time of drinking tea also has a certain impact on physical health. So is it good to drink tea at night?

1. Affect normal digestion

A person normally secretes 1.5-2.5 liters of gastric juice every day, which can properly digest the food a person consumes every day. Drinking a lot of strong tea will dilute the gastric juice, reduce the concentration of gastric juice, and make it unable to digest food normally, resulting in indigestion, bloating, abdominal pain and other symptoms, and some may even cause duodenal ulcers.

2. Tea hinders the body’s absorption of iron

Tea leaves contain tannic acid, black tea contains about 5%, and green tea contains about 10%. When the human body drinks a large amount of strong tea, the combination of tannic acid and iron will become more active, which will bring obstacles and effects to the body's absorption of iron, causing the body to show iron deficiency anemia.

3. Drinking strong tea can easily cause constipation

The tannic acid in tea leaves can not only combine with iron, but also combine with the protein in food to form a block of tannic acid protein that is difficult to digest and absorb, leading to constipation. For elderly people with constipation, it will make constipation more serious.

4. Strong tea causes high blood pressure and heart failure

The caffeine in strong tea can cause the human heartbeat to speed up, thereby increasing blood pressure; at the same time, a large amount of strong tea entering the blood vessels can increase the burden on the heart, causing uncomfortable symptoms such as chest tightness and palpitations, and aggravating the degree of heart failure.