In addition, in fact, foreigners will not feel sleepy because of drinking coffee in the afternoon. Many foreign white-collar workers have the habit of drinking afternoon tea. In the afternoon, they will have a cup of coffee or something. In fact, this cognition is unreliable. We China people will fall asleep after drinking coffee. You must drink coffee after dinner. They don't just drink coffee after meals, they drink coffee almost all the time.
This is mainly because coffee contains caffeine which is a mild stimulant. It can improve the sensitivity and attention of the human body, accelerate the metabolism of the human body, improve the mental state and physical quality of the human body, and thus play a role in eliminating fatigue. And after drinking coffee, caffeine will affect sleep within 4 hours, making people excited.
Americans like to eat foods with low carbohydrate content for lunch, while Americans generally like to go to the gym to exercise at noon to reduce the physical stiffness caused by work, so they also like some high-protein things to improve the quality of exercise, and they will also match a certain amount of vegetables and some fruits. Of course, even if they sometimes eat some sandwiches or hamburgers at noon.
Another reason is that foreigners hardly work overtime. When I work abroad, I basically go to work at 90: 00 in the morning and everyone leaves around 5: 00 in the afternoon. By 6 o'clock sharp, the whole building was empty, not to mention working overtime at night. Therefore, people who want to be in a good mood in the afternoon may wish to reduce the carbohydrates in lunch and drink some coffee.