Does drinking coffee affect sleep?

Many people experience high spirits after drinking coffee and can't sleep. This is because there is a conductive substance called adenosine in the body, which can control nerve activity, causing breathing to slow down, mood to weaken, acid secretion to decrease, and diuretic effects. Caffeine, on the other hand, imitates adenosine, making the body think that the effects of adenosine have occurred, making you feel energetic, acid increased, more frequent urination, and naturally less able to sleep. It is worth noting that this brief wakefulness caused by caffeine does not mean that physical strength has really recovered. In addition, everyone's metabolic rate to caffeine varies, and their sensitivity to it varies, so some people don't feel that sleep is affected after drinking coffee. Therefore, a cup of hot coffee after getting up in the morning can lift the body and mind and make the mood more comfortable, while at night it may cause insomnia.