yes. Because caffeine excites the central nervous system, it is the main reason why drinking tea at night affects sleep.

During sleep, the hypnotic adenine nucleoside binds to its receptor, which slows down the activity of nerve cells and weakens them, so people feel sleepy and fall asleep. After drinking tea, caffeine ingested by the human body will preferentially combine with adenine nucleoside receptors, which will hinder the role of adenine nucleoside in helping sleep, increase the activity of nerve cells, and make people more awake and unable to sleep, which will lead to insomnia.

/iknow-pic.cdn.bcebos.com/8cb1cb13495492339f5f9a99c58d19b2de494d"target="_blank"title=""class="ikqb_img_alink"> /iknow-pic.cdn.bcebos.com/8cb1cb13495492339f5f9a99c58d19b2de494d? X-BCE-process = image% 2fresize% 2cm _ lfit% 2cw _ 6% 2ch _ 8% 2climit _ 1% 2fquality% 2cq _ 85% 2fformat% 2cf _ auto "esrc ="/N2/218/125/C37125. People's Daily Online-Why does drinking tea lead to insomnia? 3 tips to keep you awake when drinking tea

/m.people.cn/N4/216/1116/C167-7915165.html "target =" _ blank "title =" People's Daily Online-There are 6 advantages of drinking tea every day, so it is not advisable to drink tea before going to bed "> People's Network-Drinking tea every day has six advantages. It is not advisable to drink tea before going to bed.