Why do some people drink a lot of coffee and can't sleep? How many cups of coffee are suitable for a day?

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People often ask the editor, "Why do I have insomnia when I drink coffee?" But the editor would ask each other, "do you have any friends who don't drink coffee and can't sleep?" Many people may smile when they hear this. In fact, modern people are under a lot of stress, or other drinks and foods contain caffeine (such as milk tea, cola). ), it can lead to insomnia, and these are not just caused by "coffee".

Of course, coffee, as the drink most closely related to caffeine, often becomes a scapegoat for insomnia. Whenever someone can't sleep, he will operate on coffee, so we often see a lot of articles about coffee causing insomnia. In fact, we need to talk about the most essential thing, that is, caffeine.

Caffeine is not that bad.

When it comes to caffeine, there are actually a lot of medical studies and reports. It is the most common additive in modern food and beverages, but let's first take a look at the benefits of caffeine to the human body.

Reduce the probability of tinnitus: currently, studies have been done on women, drinking 2 cups of coffee a day can effectively reduce the probability of tinnitus by 15%.

Metabolic rate: for every 100 milligrams of caffeine, drinking caffeine increases the metabolic rate by 4%. This is why refreshing drinks and painkillers contain caffeine to make the drug act quickly and as an appropriate addition.

Anti-depression: coffee that feels a little high after drinking, actually because it has the right amount of caffeine, which stimulates your brain to transmit serotonin and dopamine. in addition, drinking coffee can also create a pleasant mood for the drinker's occasion (such as afternoon tea with friends).

Asthma: caffeine can relieve asthma and relieve bronchopulmonary dysplasia.

Refreshing: for the same reason as serotonin and dopamine mentioned earlier, drinking the right amount of coffee before work can stimulate the brain and get the body to work quickly.

Stimulating hair growth: there are many "caffeinated" shampoos on the market because caffeine can effectively stimulate the growth of hair follicles and inhibit the negative effects of testosterone on the proliferation of keratinocytes (inhibiting hair follicles). Because the caffeine you drink has a limited effect on hair follicles, there are products like "caffeine shampoo".

Hey, hey, that's right. People who lose their hair before getting rid of poverty must have seen this, right?

Why do some people drink a lot of coffee and can't sleep?

Caffeine can detoxify through the liver and is broken down into water-soluble substances (demethylation product Demethylated products), which can be quickly dissolved in water and excreted from the body, while the "adenosine" in the brain blocks the tired transmission of adenosine for caffeine, thus making the body think it is "not tired."

In fact, some people who have been trained in caffeine, or people who are born with a good liver, seem to be unable to sleep because they are better at the metabolism of caffeine than ordinary people; therefore, the better the detoxification function of the liver, the less sensitive to the effects of caffeine.

Variety of coffee beans and caffeine

We often see "100% Arabica" on the coffee bean package. what does that mean? Let's start with the comparison of bean caffeine. Arabica beans generally taste better and sweeter than Robusta beans, and the most important reason is the amount of caffeine.

The bitterness and caffeine content of the same grams of "Robusta beans" is about 3 times that of "Arabica beans", so most coffee beans will choose "Arabica". The fastest way to distinguish them is to look at the size of the beans. Although the beans in the picture below all look the same, in fact, "Robusta" is very sturdy, with a volume of about 110% more.

So the same 20g Arabica beans contain much more caffeine than Robusta beans, and friends with poor caffeine metabolism are advised to avoid excessive intake.

How many cups of coffee are suitable for a day?

How many cups of coffee are the safest to drink that day? The editor feels that there is no standard answer and should be judged according to his personal physical condition. It is generally recommended that adults drink no more than 500ml (about 1 Murray 2 cups) or caffeine no more than 400mg.

Unless you drink every morning, noon and evening, and your body is used to caffeine, you also know the truth of "things go to extremes". Xiaobian himself is a coffee drinker and will drink at least 2 cups (360 milliliters) a day. However, you are not advised to drink a lot of it in a short period of time.

People who like to drink coffee, how to solve the problem of hyperactivity? Here are a few tips:

1. Drink properly or strengthen liver function training

Coffee is actually a good drink for drinking, unless you come from a special coffee training class and often practice the detoxification of the liver. You can drink freely, unless you want to be like the editor, or a cup tester or bean baker who makes a living by tasting coffee for a long time, otherwise the editor really advises ordinary people to drink in moderation.

2. Drink a lot of water after drinking coffee

The retention time of caffeine in the body varies from person to person, usually for 7 hours. Therefore, if you are afraid that you can't sleep after drinking coffee, you can drink a lot of boiled water after drinking coffee, which can effectively accelerate caffeine metabolism.

3. Adjust the period of drinking coffee

If you can't sleep after drinking coffee, and both of these methods have been tried, it is to avoid taking caffeine within 7 hours before going to bed, which can effectively reduce the effect of caffeine on sleep.

4. Choose coffee beans

If you drink coffee beans so that you can not sleep, you can try other beans, different varieties of producing areas or brewing methods, the caffeine content is different, in fact, drinking coffee is to keep trying, will find their own "the one" ah!

Coffee, always make people stable, always give people a safe fragrance, irritability will always go away. This is probably the reason why so many people risk insomnia and have a taste of rest.

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