The refreshing principle of coffee is revealed! Why do you get more sleepy when you drink coffee?! Symptoms of coffee addiction

Why is it refreshing after drinking coffee?

What is the principle of refreshing coffee?

Is caffeine responsible for the refreshing effect of coffee?

The code clerk is fleeing the scene of torture. )

You know what? When you take a sip of coffee, there will be a wonderful play in your brain! This small theater in the brain is called

"grab the sofa! "

Venue: your brain

Scene: receptor (receptor) card sofa area, which is a specific signal substance.

Protagonist one: adenosine (Adenosine) a bunch of lazy guys. This group of brothers der is an inhibitory neurotransmitter. Once the glands are lying on the sofa (binding to the receptor), you will begin to feel sleepy. The bigger the gland formation, the more you lie on the sofa (binding to the receptor), the more sleepy you will be.

When you take a sip of coffee, the situation in your brain is something like this.

(pink cushion deductive recipient cow cat deductive caffeine orange cat deductive adenosine)

Protagonist 2: caffeine (Caffenie), a group of spiritual guys. This group of der is a central nervous system stimulant that can give you a temporary pick-me-up. The main purpose of Ain is to prevent adenosine from lying on the sofa (preventing adenosine from binding to the receptor properly), so they will lie down on the sofa as quickly as possible.

(before you drink coffee): the glands are dragging their tired bodies looking for a sofa (receptor) to lie down. At this time, you will not be sleepy, because the glands are still free (you will not be sleepy until the gland lies down! ). Suddenly the glands shouted, "Wow!" Sofa "and lie up! And your drowsiness will begin to emerge.

"No, I need coffee!"

When you hoarded and drank a few sips of coffee, the Ains came out!

"Wow, so many lazy guys want to get close to the sofa?! No, don't let them lie down! Brothers, hurry up and be one step ahead of them. You can't let them lie down so easily! " As a result, the Ains occupy the sofa area as fast as possible or sit on the same sofa with the adenoids (so that adenosine and receptors cannot bind properly).

If the glands are not lying on the sofa with great fanfare, the presence of Ain can indeed grab a lot of sofas and will give you a brief awakening effect in a short period of time.

Then why do you get sleepy and sleepy when you drink coffee sometimes?

There are three possibilities!

In some cases, the glands are already powerful and lying comfortably on the sofa. Ain can't pull the glands whose buttocks are glued to the sofa. It's too late to drink, and when adenosine and receptors have bound, it doesn't make sense for caffeine to stop them. )

In some cases, because of your own fast metabolism, Ain disappeared before they grabbed many sofas. But their presence may stimulate the appearance of more glands. And then? And then it must be lying on the couch! (some partners are born with a stronger metabolism, and the persistence of caffeine will be shorter, so caffeine doesn't have much of a refreshing effect and may increase your drowsiness. )

In some cases, the gland will get used to the existence of the Ains, and there is always a way to lie firmly on the sofa when the Ains arrive. Faced with a group of glands that are not worried about Ain's sudden arrival and have fallen asleep, Ain can do nothing about it (regularly drinking coffee, the nervous system produces antibodies to caffeine, preventing caffeine from being refreshing. )

So for those who don't drink coffee very much, coffee intake may boost their spirits, but for those who drink coffee for a long time, caffeine may not have the same effect.

"No! When I drink coffee every day, it can also refresh me! "

Perhaps this is a kind of "ceremonial anesthesia" and an illusion of refreshing by drinking coffee!

Ceremonial anesthesia (ritualized inebriation) first appears in people who drink alcohol. Drinking is not necessarily to get drunk, it's more about giving yourself a sense of ritual through alcohol, and then doing something you don't normally dare to do, that is, "drinking courage". The same goes for coffee, which is equivalent to giving yourself an opportunity to start a new day full of energy.

In an article in Scientific American, anthropological researcher Krystal Dempsey 39: Costa said: we live in an era where efficiency is required all the time. And coffee, as a spiritual stimulus, has become something we naturally want to choose when we feel inefficient and depressed. We hope that it can quickly enter the brain through the blood and help us to lift our spirits, stay alert and focused, and ensure work efficiency when we are in bad shape.

Therefore, for people who drink less coffee, drinking coffee can make them "more refreshed". For regular coffee drinkers, drinking coffee can "refresh" them.

Does the above-mentioned "ritual anesthesia" count as caffeine addiction?

No! These are two different things!

"ceremonial anesthesia" affects psychology, while caffeine intake leads to addiction / a serious dependence on caffeine is psycho-physical. Humans are addicted to caffeine because caffeine mimics the responses of cocaine and marijuana in our brains, stimulating the abnormal secretion of the neurotransmitter dopamine in synaptic spaces. Over time, excessive consumption of caffeine can lead to caffeine addiction in the body.

Caffeine addiction is followed by withdrawal reaction (abstinence reaction), which refers to a specific psychological syndrome that occurs after stopping caffeine intake or reducing the dose. For example, there will be drowsiness, depression, restlessness, nervousness, gastrointestinal / urinary system / heart adverse reactions that affect life. In general, caffeine addiction occurs only in people with long-term, excessive consumption of caffeine products.

But everyone can take different levels of caffeine! According to the safe intake standards set by FDA (US Food and Drug Administration), caffeine addiction generally does not occur as long as you consume caffeine above 400mg (a cup of 225ml hand brewed coffee with 15g extracted in the proportion of 1:15 powdered water, with a caffeine content of about 60-90mg, that is, 4-5 cups of hand brewed coffee).

"although the coffee is delicious, remember not to overdo it!" I really feel very tired. What I need to do is to pay more attention to my mental / physical condition, and I can't rely too much on coffee to cheer me up.

Photo Source: Internet

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

For more boutique coffee beans, please add private Qianjie coffee on Wechat. WeChat account: kaixinguoguo0925