Can’t you sleep well if you drink tea at night?

　　Tea has both "refreshing" and "nourishing" effects. It can not only make the brain more awake and flexible, but also inhibit the brain function. nerve Too much excitement makes people fall asleep easily. The key depends on how you drink it.

　　Drinking tea depends on your physical constitution - in summer, tea is people's favorite drink. However, medical experts remind you: when drinking tea, you need to identify your physical constitution and drink it appropriately, otherwise it is very easy to harm the body.

　　Traditional Chinese medicine believes that people's constitutions are divided into hot and dry, and cold and deficient, and tea can also be divided into cool and warm through different production processes, so there are specialties in drinking tea with different constitutions. People with a hot and dry constitution should drink herbal tea, while those with a weak and cold constitution should drink warm tea.

　　The alkali dissolves into the water, and the tea at this time has obvious refreshing effects and makes people excited. Later, the tea polyphenols in the tea gradually dissolved into the water, offsetting the coffee The effect of alkali makes it difficult for people to produce obvious physiological excitement. Therefore, when drinking tea in the evening, just pour out the first tea that has been brewed for about 2 minutes, then add boiling water and brew again, and the refreshing effect will not be so obvious.

　　Experts also suggest that it is best to drink black tea at night. Because green tea is a non-fermented tea, it has a high content of tea polyphenols, maintains its original properties, and is relatively irritating. ； Black tea is a fully fermented tea. Although the content of tea polyphenols is small, after the "maturation" process, it has weak irritation, is relatively gentle and mild, and is suitable for drinking at night. Especially for people with weak spleen and stomach, adding some milk when drinking black tea can have a certain stomach-warming effect.

　　However, experts point out that people who are easily agitated or sensitive, have poor sleep conditions, and are physically weak should drink less or no tea at night. In addition, when drinking tea at night, put less tea leaves and don't make the tea too strong. The best time to drink tea is after dinner, because drinking tea on an empty stomach will harm the body, especially for people who do not drink tea often. It will inhibit the secretion of gastric juice, hinder digestion, and in severe cases can cause "tea drunkenness" such as palpitations and headaches.