What kind of coffee is suitable for autumn and winter? What are the precautions for drinking coffee in autumn and winter?

Recently, all parts of the country are scrambling to start the "autumn and winter" mode.

Coinciding with the strong launch of the autumn and winter model, we have to admit that "coffee" is already a "top priority" for most office workers.

Code workers in the south always open the window and feel the fresh air when they get up in the morning. The head-on coolness of "hissing" made the code worker shabby.

It is necessary to have a cup of coffee before going to work to keep your brain awake and start a full day. "what would you like to drink today? It's a little cold today, so. Come and have a cup of manning that I drink all the year round. Drive away the remaining sleepiness! "

Here is a warm reminder. I have also talked about tweets in the workshop before, drinking only one kind of coffee all the year round (Portal: I only drink one kind of coffee all the year round. ).

The best time to drink coffee in autumn and winter

The researchers point out that the best time to drink coffee every day throughout the year is from 3pm to 5pm in spring and winter, and from 4pm to 6pm in summer and autumn. According to research, these are the most exhausting moments in the human body.

Can we have coffee and tea together?

Drinking together can easily lead to excessive caffeine intake. When people consume too much caffeine, it will stimulate the central nervous system and lead to insomnia, palpitation and other uncomfortable symptoms. If you want to mix and drink, it is recommended that you stagger the time to drink.

Drink moderate amount of coffee in autumn and winter

It is generally believed that the average adult consumes no more caffeine than 400mg every day. There are basically no major health problems with this intake. For example, coffee brewed by hand (200ml/ cup) contains about 75mg, which is equivalent to 4-5 cups a day.

The United States and Europe recommend that adults consume no more than 200mg of caffeine a day, while friends who are not used to drinking coffee for years will recommend no more than 200mg a day. Drinking too much coffee not only does not play a refreshing and intellectual role, but also produces anxiety, serious and even affect work and daily life.

How long will it take to take effect after drinking coffee?

Do you remember? The researchers report that an adult may feel "awakened" after drinking a cup of 300ml coffee. After drinking about 15min, the coffee will be "effective" and can last for about 2 hours.

But one thing that needs to be clear is that everything has its limits.

No matter how refreshing the coffee is, it is impossible to "stay awake every 30 minutes." After all, everyone has different sensitivity to caffeine, which is at best "something that suppresses drowsiness for the time being". When we don't get enough sleep, it means that the effect of caffeine becomes weaker. If drinking 2 or 3 cups of coffee in a short period of time can't stop drowsiness, the typist advises you to "stop" (wry smile) because drinking like this won't help much.

There are also many friends who worry, "caffeine doesn't work for me at all!"

We might as well explain the refreshing principle of coffee from a chemical point of view: there is a substance called xian (gan) in the human body.

When the body is tired, it sends a signal to the brain that "I am tired". At this point, adenosine acts as a signal to the brain. The more tired the body, the more adenosine. When adenosine docks with a particular receptor in the brain, the brain tells you that you are tired and need to rest.

The chemical structure of caffeine and adenosine is like twins. When caffeine enters the body, it occupies a place in the body first. When the load is about to be full, if the body releases adenosine at this time, it is also homeless. At this point, the caffeine will go up, stop the adenosine and dock with the receptor on its own, and the instructions to the brain become: you are not tired, you can continue.

Key tips:

The human body is drinking coffee when it is exhausted. Adenosine has occupied a good position, and the first-come-first-served principle is also applicable in the body. Drinking coffee at this time, of course, has no effect at all. So, before you feel tired, drink a cup of coffee and let caffeine grab a seat.

However, there are exceptions to everything. Due to the difference of human genes, the receptor of each person will be different. In some people, the brain receptor accepts caffeine perfectly, while in others, the brain receptor has little electricity for caffeine. The receptor that does not come to electricity, even 3L coffee can not stop the pace of adenosine, let alone refreshing.

Photo Source: Internet

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