Know caffeine
Caffeine is a mild stimulant that contains less caffeine in our daily drinks such as tea, cocoa and chocolate. Caffeine is also found in carbohydrate drinks such as cola and some anesthetics. It can accelerate the metabolism of the human body and keep people clear-headed and sensitive. The refreshing effect of coffee is very popular.
Caffeine can stay inside the body for several hours, and the effect on the body is appropriate for each person. Some people will lose sleep after drinking coffee at night, while others will be nervous and overexcited if they drink too much coffee, but many people will not be affected at all.
Once we understand the body's response to caffeine, we can use it to meet our needs. Drinking a cup of delicious coffee before the exam or long-distance driving will certainly reduce fatigue.
The caffeine in coffee is insoluble in cold water, but easily soluble in hot water. It will stimulate the cerebral cortex, eliminate drowsiness, enhance the sense of touch and thinking and adjust the function of the heart, but also dilate kidney blood vessels, diuresis and so on. However, caffeine is not limited to coffee. Usually a cup of 100cc coffee contains caffeine 60~65mg, green tea has 200~300mg, black tea has 350~400mg, and cocoa has about 100mg. Excessive caffeine intake is prone to tinnitus, hyperfunction of the heart (the heart beats rapidly, the number of pulses increases), and the pulse is uneven, so you must drink coffee in moderation.
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Milk is one of the most widely used coffee condiments
Traditionally, milk has never been added to coffee in some countries such as Yemen, Ethiopia and Turkey.
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Experts suggest drinking more coffee and drinking less according to your own physique.
Finally survived the hot summer, but the spirit will still feel tired, the original autumn fatigue followed. At this time, many friends like to have a cup of cold cola or tea, which will soon feel much more comfortable. Why does drinking these drinks make people feel refreshed? It turns out that these drinks often contain a small amount of caffeine, which helps people relieve hot weather.
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