In order to refresh, many people are accustomed to drinking a cup of coffee when they doze off, but some people feel more sleepy after drinking coffee. What is going on?
The principle of action of caffeine is to prevent the binding of adenosine receptors.
First, let’s take a look at how caffeine works. It’s not actually making your brain more exciting, it’s preventing it from getting sleepy.
The CP responsible for making you sleepy in the brain are adenosine and adenosine receptors. They are like plugs and sockets. After plugging in, your nerve cells will weaken, which means you will become sleepy.
Caffeine, which happens to be plugged into this socket, but it doesn’t turn on, so adenosine, which is responsible for making sleepiness, has nowhere to go.
So although the body is tired, adenosine will always be produced, but because it is blocked by caffeine, they cannot insert into adenosine receptors, and people will continue to be awake and excited.
Why is it that the more you drink, the more sleepy you are? The reasons are mainly the following categories:
(1) Genetic decision
The principle we explained just now mentioned adenosine receptors, and each person’s adenosine receptors have different sensitivity to caffeine, which is genetically determined, so some people are naturally immune to caffeine. Maybe someone else takes a sip, you need to drink a whole glass to achieve.
(2) drinking late
Caffeine works by preventing adenosine from binding to adenosine receptors. But if adenosine and adenosine receptors are already bound when you drink it, then caffeine becomes an awkward part. At this point, caffeine can only stand aside and watch adenosine make us sleepy.
(3) drink too much
Another possibility is that because of long-term high coffee consumption, resulting in tolerance, fewer adenosine receptors are released in the brain. This is why some people are “addicted to coffee”, and they can’t keep their eyes open from one cup to two.
(4) Too much sugar in coffee
Sugar can be exciting, too, so you might feel like you’re going to be high when you drink coffee with sugar. But the insulin in your body quickly kicks you out to lower your blood sugar, and a sudden drop in blood sugar can make you feel sleepy.
Prevention of disease: If the benefits of coffee are limited to refreshing and fat burning, then it is too small to underestimate coffee. A large number of long-term studies have found that caffeine also has the potential to reduce the risk of a variety of health problems, especially cardiovascular, neurological, energy metabolism and other diseases.
A large number of research results also affirm the positive effect of caffeine in preventing obesity, diabetes, Alzheimer’s disease and liver damage.
So how do you drink to wake up?
(1) Coffee Nap
This is a method that has been proven effective by scientists. Sleeping can reduce fatigue in the brain and unbind adenosine and adenosine receptors, so caffeine can take advantage of it. How does it work?
Because caffeine can stay in the human body for 4 or 5 hours, and what we call Coffee Nap should not exceed 20 minutes. So your best bet is to finish your coffee 20 minutes before bed and let the caffeine kick in.
(2) Drink in advance
Coffee nap is suitable for remedying the situation. If possible, it is best to drink it in advance to ensure that caffeine seizes the high ground of adenosine receptors. If you need to stay awake in the afternoon, drink coffee at noon.
(3) Drink as little as possible
In order to avoid coffee addiction and tolerance, even if you are sleepy, you must control your intake, and do not exceed 2 cups a day. Becausecaffeine can only temporarily prevent adenosine from binding to receptors, but it cannot eliminate adenosine, coffee actually presupposes your “energy”. Therefore, rest is the king of maintaining energy, and coffee is best used for emergency care.
(4) Drink less coffee with high sugar content
The high sugar content in coffee can easily make you go up and down the roller coaster of wakefulness and sleepiness, and the 3-in-1 instant coffee is a typical example.
In addition to accumulating adenosine waiting to retaliate against you, elevated blood sugar levels and lower blood sugar levels can make you even more sleepy. So expect coffee to work, preferably low-sugar or sugar-free.
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