Why do you want to sleep after drinking two cups of coffee at night?

Cong Cong talk: Why do you still feel sleepy after drinking coffee?!

Oh, like me, others drink coffee to refresh themselves, I want to sleep as soon as I drink coffee, I don't know what to do But I am sure that drinking coffee is not good for the body, and it will turn ** black, it is better to drink pure milk at night, it is easy to absorb, and whitening.

If you're really sleepy or haven't rested well, no matter how much coffee you drink, you'll sleep! And it's not good to drink coffee before going to bed, so drink less!

In my memory, the more I drank coffee, the more excited I became! Quack, you're a night cat! Oh.

Caffeine works by preventing adenosine from binding to adenosine receptors. Drinking coffee can prevent the combination of adenosine and adenosine receptors, which are produced all the time when you are tired, so that the adenosine cannot reach the adenosine receptors, so the brain is awake and excited. But after drinking coffee, I want to sleep instead, and the possible reasons are as follows:

One is genetically determined, everyone's sensitivity to caffeine is different, and some people have their own immunity to coffee.

The second is the issue of time. If you drink adenosine and adenosine receptors when you drink it, then caffeine is embarrassing and doesn't work at all.

Third, the problem of quantity. If you drink coffee for a long time, you will develop a tolerance and the brain will release less adenosine receptors.

Four, too much sugar. Sugar can also be high, but the insulin in your body will quickly help you lower your blood sugar, and suddenly your blood sugar will drop and you will feel sleepy.

Many young people love to drink coffee to refresh themselves, but not everyone can drink coffee to refresh, and some people even want to sleep after drinking coffee, because the body does not absorb caffeine, and if it is not Americano, it does not have such a powerful anti-sleep-relieving effect.

After drinking coffee in a normal person, it can make people feel refreshed when they are tired, but the effect varies from person to person, and many people will be drowsy after drinking coffee. In fact, the more you drink, the more sleepy you become. This is because coffee drinkers are allergic to coffee, after drinking coffee, the metabolism will be faster, the metabolism will consume the vitamin B group, and at the same time, after the consumption of group B, which is coordinated with the human neuromuscle, increases, it will make the person drowsy, sleep time can be increased, and as we age, there is less and less caffeine and receptors in the brain that can be docked.

After drinking your coffee, you will enter a very sleepy state. It is also possible that the body itself is in a state of extreme sleepiness, and the coffee cannot resist and can also make people drowsy. Some people drink coffee regularly, just like they drink regularly, and they will develop a strong resistance to coffee and will not have a good calming effect.

There are many reasons for drowsiness after drinking coffee, and the causes can be different for different patients. If you are already extremely sleepy, drinking sweetened coffee with your partner can actually have a hypnotic effect, because the cerebral cortex enters a state of inhibition before receiving caffeine, and the patient may also experience lack of energy and dizziness. Secondly, if the body is deficient in B vitamins, drinking coffee may be more sleepy, mainly because coffee will make the body metabolize too quickly, increasing the body's consumption of B vitamins related to neuromuscular coordination.

Daily work and rest should be regular, avoid overwork, and avoid drinking too much coffee for a long time to avoid uncomfortable symptoms.

Coffee is a very widely used beverage. Drinking coffee has a stimulant effect and is often used to refresh the mind. However, the effects of coffee vary from person to person, such as tolerance, absorption, physical state, etc.

Drinking coffee may not be exciting. Occasionally, some people will be sleepy, especially those with special constitutions, who are not very sensitive to coffee.

There are also some people who have low body resistance due to overwork, jet lag, staying up late, working night shifts, or lack of nutrition, or serious physical illness. This is determined by the state of the body. Drinking coffee is exciting, and some people use it to refresh their minds, but there are individual physical problems, state problems, absorption problems, tolerance problems, etc., that can cause occasional people to appear more sleepy.

Reasons why you want to sleep after drinking coffee:

Drinking coffee when there is no tiredness can lift the spirit and eliminate fatigue; If you are extremely sleepy, drinking coffee with added sugar and partner can have a hypnotic effect, because the cerebral cortex has entered an inhibited state before receiving caffeine, and the partner and sugar in the coffee you drink contain carbohydrates, which have a hypnotic effect on people.

If you stick to it and don't sleep, you will feel refreshed after half an hour, which is that caffeine mobilizes the central nervous system and puts them in a state of excitement again;

Drinking more coffee over a longer period of time increases the body's tolerance to caffeine, so drinking coffee will not affect normal sleep.

1.Some people drink coffee not only does not have a refreshing effect, but wants to sleep instead, and this condition has the following reasons: institutional factors, some people have a large number of powerful caffeine antibodies in their body, which resist the refreshing effect of coffee.

2.Drinking coffee regularly, like drinking alcohol regularly, can have a strong resistance to alcohol, and the same is true for coffee.

3.At the same time, there are transformative or anti-coffee substances in the food or drink that enters.

4.Suffering from extreme drowsiness, coffee cannot resist the energy of drowsiness.

Some people drink coffee not only does not have a refreshing effect, but wants to sleep more and more, and there are several reasons for this condition:

1. Institutional factors, there are a large number of powerful caffeine antibodies in the body, which resist the refreshing effect of coffee.

2. Drinking coffee regularly, just like drinking alcohol regularly, can have a strong resistance to alcohol, which is such resistance to coffee.

3. There are transformative or anti-coffee substances in the food or drink ingested at the same time.

4. Being in a state of extreme drowsiness.

Coffee is a beverage made from roasted coffee beans, and it is the main drink popular in the world, along with cocoa and tea.

The coffee tree is a common tree belonging to the Rubiaceae family, the coffee for daily drinking is made with coffee beans with a variety of different cooking utensils, and the coffee beans refer to the kernels in the coffee tree fruit, and then roasted with appropriate methods, a standard cup of coffee should not taste bitter, a qualified barista will rigorously carry out each step of the operation when making coffee, and finally the coffee presented to the guests will show different degrees of sweetness, acidity, body or cleanliness in the taste.

The effect of coffee on different people is really amazing: if some people are given a cup of coffee in the afternoon, they will look at their watch and then refuse to take coffee because "it is already three o'clock" and "they will not be able to sleep at night" if they are drinking coffee. But some people can fall asleep immediately even if they drink four glasses of pure strong coffee at night.

There are three factors that contribute to the different effects of coffee on people: age, genetics, and habits.

To understand this, one should first know how coffee and other caffeinated beverages work: when the human body is tired, it tells the brain through a signaling substance called adenosine. The more tired the body, the more this substance.

If you want the brain to know that "I'm tired," you have to get this substance to dock with a specific receptor in the brain. The caffeine in coffee or other beverages can also interface with this receptor — and block the delivery of messengers. In this way, the brain is unable to learn the signals transmitted by the fatigue substance.

This explains why different people react differently to coffee. The first is the difference due to age: as we age, there are fewer receptors in the brain that can dock with caffeine.

A 60-year-old has less than a third of the receptors in the brain of a 20-year-old – so coffee tends to have less of an effect on older people. Then there are the genetic causes: the receptors in the brain are different for each person because of their genes.

Some people's brains are more receptive to caffeine – coffee is especially effective for these people. Finally, there's the habit factor: if you drink a lot of coffee over a long period of time, your brain will release fewer and fewer receptors – and the effect of coffee will be smaller and smaller because of habit.

In addition to these three factors, scientists at the Jülich Research Center have also studied the effects of coffee on the brain, and have good news for all party holders: After a sleepless night, the brain reacts quickly. Because sleep deprivation makes people more sensitive to coffee, the brain releases 20% more receptors than usual.

So it's not an illusion that a cup of coffee the next morning will be especially effective after a crazy night.