It’s too late to drink coffee when you’re sleepy!

Coffee has always attracted much attention as a life-saving magic weapon for contemporary workers, and rumors about it have never stopped.

Does coffee cause cancer?

Why do some people feel energized after drinking coffee while others feel sleepy?

Why do some people get diarrhea after drinking coffee?

Can I drink coffee every day?

Let’s clarify these issues all at once today.

Drinking coffee can become a habit or a hobby, but don't really think of relying on it to "extend your life". You should know that caffeine can refresh you, but it does not really drive away sleepiness. Instead, it deceives the brain and temporarily blocks the transmission of fatigue information. When the caffeine is over, adenosine will appear again, and people will still feel sleepy. So we should rest when we need to, don't force ourselves to do it! References

[1] Gan Dingzhu. What effects does drinking coffee have on the brain? [J]. Life and Partner, 2017(18):43.

[2] Wang Yang. Drinking coffee does not refresh you[J]. Invention and Innovation (Big Technology), 2017(01):36.

[3] Coffee can refresh you, genes have the final say [J]. Encyclopedia Knowledge, 2016, 0(20):13.

[4] Zheng Wen. Drinking coffee also has health benefits [J]. Yellow River. Yellow Earth. Yellow Race, 2014(17):63.