AsapSCIENCE explains how coffee keeps people awake.

Abstract: why do coffee drinkers need more and more coffee to stay awake? Does coffee really kill people? A video from AsapSCIENCE may be able to answer these questions. From a chemical point of view, the chemical structure of caffeine is very similar to adenylate, which makes people drowsy. When caffeine enters the body, it binds to the adenylate receptor, which prevents it from binding to its receptor, thus refreshing.

[video] AsapSCIENCE explains how coffee keeps people awake

But for those who drink coffee regularly, because their brains produce more and more adenosine receptors, they have to eat more caffeine if they want to be refreshed, otherwise adenosine binds to the extra receptors. This is why the group becomes lethargic when they stop drinking coffee.

In addition, caffeine can also make the body produce more adrenaline, which will increase the body's heart rate, promote blood flow, and open the brain's mind. In addition, caffeine prevents the body's system from absorbing dopamine again and prolongs the time this exciting substance stays in the brain. However, the dopamine effect also has a drawback, that is, it is addictive, which is why people say that coffee is addictive.

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