Coffee basic knowledge Coffee makes you more and more nervous?

Caffeine helps to improve alertness, sensitivity, memory, a cup of coffee before the exam review, can make the spirit more concentrated, long-distance bus drivers when sleepy to a cup of delicious coffee, it is not easy to fatigue.

But if you drink coffee when you're nervous, it tends to add to the mix.

This is because caffeine has a strong stimulating effect on the central nervous system and muscles, but when people are in a tense moment, drinking coffee will make people feel anxious, but play a negative role. If you really want to use the power of coffee to focus yourself, you might as well put more hot milk and less sugar.