Staying up late for coffee may make you more sleepy.

The caffeine in coffee does have a refreshing effect, but it varies from person to person and is only temporary. Drinking a large amount of coffee will speed up the metabolism in the body and increase the consumption of B vitamins related to nerve and muscle coordination, while people who lack B vitamins are more likely to get tired and may form a vicious circle in the long run. The demand for coffee is increasing, but the refreshing effect is getting worse and worse.

In addition, caffeine has a diuretic effect. After drinking coffee, you will frequently go to the toilet, which will not only interrupt your work, but also cause a lack of water, which will also lead to fatigue and drowsiness.

If you know you want to stay up late, you can drink a bowl of porridge instead of part of the staple food at dinner. It not only provides B vitamins, but also provides rich carbohydrates and a strong sense of satiety.