Why does drinking coffee make you sleepy

As we all know, coffee has a good effect of refreshing the brain. When you are tired at work, you can drink a cup of coffee to refresh yourself. However, coffee does not work for some people. Instead, they will feel sleepy after drinking coffee, which can be confusing. In fact, this may be related to the lack of B vitamins. If drinking coffee makes you more sleepy, you should pay attention to this aspect.

Why does drinking coffee make you sleepy?

Do you feel sleepier after drinking coffee? You may be lacking in B vitamins! Coffee is a drink made from coffee beans and various cooking utensils, which contains caffeine. Caffeine is a relatively mild stimulant that can accelerate the body's metabolism, improve a person's mental state, and eliminate fatigue.

But some people feel sleepier after drinking coffee. Why is that? Coffee can indeed refresh you, but its refreshing effect varies from person to person. Drinking a lot of coffee will speed up the body's metabolism and increase the consumption of B vitamins related to nerve and muscle coordination. Therefore, people who lack B vitamins may feel more sleepy after drinking coffee. At the same time, because caffeine has a diuretic effect, people will go to the toilet more frequently after drinking coffee. If they do not replenish water in time, it is easy to cause dehydration in the human body, and lack of water will also make people tired.

How to stay awake without coffee? Try these five tips

In fact, if you want to maintain good health, developing good work and rest habits is the most important thing. But if you encounter an "emergency" situation where you have to stay up late, you can try the following methods to refresh yourself:

1. Smell the orange. The smell of citrus stimulates the human senses and makes people feel refreshed.

2. Drink a cup of mint tea. Mint tea can not only refresh the mind and relieve stress, but also aid digestion. The method of making mint tea is: choose 5 to 10 mint leaves, wash them with cold water, put them in a teacup, add 200 ml of hot water, then cover the teacup, and drink it when the mint tea emits fragrance.

3. Spray some water mist on your face. This not only refreshes the face but also hydrates it.

4. Chat with friends. When you doze off, you might as well chat with your friends, such as discussing what you are learning.

5. Plan your workload in advance. If you know in advance that you will feel sleepy, you can arrange your work early and put some trivial tasks during the time period when you may feel sleepy, such as writing a diary.