Coffee is refreshing. The term "anti-fatigue" is not appropriate.

Coffee is refreshing, but the term "anti-fatigue" is not appropriate.

After drinking coffee, people don't seem to feel so tired. Therefore, many people define the use of coffee as "anti-fatigue." Dai Guangqiang, former director of the Anhui Provincial Department of Health and health expert, believes: "it is OK to say that coffee can refresh the mind. This is the role of caffeine, but it is not appropriate to say that coffee is anti-fatigue. Fatigue is also divided into physical fatigue and psychological fatigue. To put it simply, drinking coffee to fight fatigue is too general. "

It is reported that after mental or physical work, a substance called adenosine is gradually hoarded in the brain as a metabolite, causing people to feel tired, and caffeine will preempt adenosine to attach to its receptor. If the brain does not sense this fatigue substance, it will be temporarily "deceived" and then maintain a good mental state-this is the secret of coffee "refreshing". However, the effect of caffeine is temporary, and as caffeine is metabolized and adenosine is captured by the brain again, people will feel tired again. Coffee only has a refreshing effect for a short period of time. If you really want to "get rid of fatigue", the only way is to sleep.

When can I have coffee? "when you need it."

There are all kinds of theories about the best time to drink coffee on the Internet. According to Dai Guangqiang, "these statements are all for show." Dai Guangqiang said that for most people, drinking coffee does not need to pay attention to time, "the most important thing is to meet your habits and needs." He stressed that life should be used for enjoyment, not dwelling on rules. "when would you like to have coffee? In fact, anytime is fine, it is best when you need it. "

He further gave an example: for people who get up early and don't get enough sleep, a cup of coffee in the morning can improve brain activity; for people at work, a cup of coffee can relieve brain fatigue; for people who have to stay up late and work overtime, a cup of coffee can make him last until the end. There is no point in worrying about when to drink coffee. You can drink it as long as you need it. But Dai Guangqiang also warned: "people who have a strong reaction to coffee, such as those who drink coffee in the afternoon will affect their sleep at night, should pay attention to adjust the time of drinking coffee. It is best not to drink it after 12: 00 noon, so as not to affect their sleep at night."

How to drink coffee is healthy? Pay attention to less sugar

But if you want to drink coffee healthier, you also need to be careful. Dai Guangqiang believes that grinding beans with a coffee machine is the healthiest way to drink. If you don't have time to grind your own coffee beans, it's also a good choice to buy coffee powder directly. "but two points should be particularly reminded: 1, when drinking coffee, there is a hidden danger of excessive energy intake when drinking coffee. Fresh milk can be used instead of sugar, which not only tastes good, but also more nutritious. 2. Choose products containing vegetable fat powder as little as possible. Choose pure coffee products, because plant fat powder contains artificial trans fatty acids, which is harmful to human health, and products such as coffee partners are also used as little as possible."

Although coffee is good, it is not without taboos, and everyone can drink it at will. Here is a hint from the small coffee club:

There are five categories of people who should drink little or no coffee:

1. Pregnant women in the first trimester of pregnancy

2. Lactating women

3. Patients with gastric ulcer

4. People who react strongly after drinking coffee

5. Patients with severe liver disease.

Drinking as little as possible doesn't mean you can't drink it. If you choose the right time and amount to drink coffee according to your actual situation, you can enjoy the health benefits of coffee.

Article source: Internet