No, decaffeinated coffee is not only not refreshing, but also may cause other side effects.

The so-called decaffeinated coffee means that coffee beans are treated before being sent to the roaster to separate caffeine that affects sleep. However, decaffeinated coffee is not 100% caffeine-free, only 94% to 98% caffeine can be removed, and it still contains a small amount of caffeine.

A recent study by the National Institutes of Health found that drinking decaffeinated coffee is more likely to cause cardiovascular disease. ? The study of 187 people found that after drinking 3-6 cups of coffee every day for 3 months, the bad cholesterol index in human body increased, leading to the increase of blood fatty acids 18%.

When we drink coffee, tea or cola, caffeine is immediately absorbed by the human body, which has an impact on the nervous system, heart, digestion, breathing and urinary system. However, caffeine does not accumulate in the body, and it is naturally excreted after a few hours, and the impact is short-lived. There are many factors to consider whether caffeine has a significant impact on the human body. First of all, everyone's physique is different, and their reaction to caffeine is different.

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Caffeine was discovered by German chemist Friedlieb Ferdinand Runge in 1898. Since the end of19th century, scientists have been studying how to inhibit the effect of caffeine, trying to remove caffeine and keep other substances in coffee. 1903, coffee merchant Ludwig Rosli us commercialized decaffeinated coffee beans for the first time. This technology has gradually matured through continuous improvement. However, decaffeinated coffee beans need to be processed from raw coffee beans. Decaffeinated coffee beans are not easy to bake and their flavor is greatly reduced.

Caffeine is a xanthine alkaloid compound and a stimulant of central nervous system, which can temporarily dispel drowsiness and restore energy. It is used to treat neurasthenia and coma and resuscitation in clinic. Coffee, tea, soft drinks and energy drinks containing caffeine are very popular, so caffeine is also the most widely used psychotropic drug in the world.

In North America, 90% of adults consume caffeine every day. Many natural caffeine also contains many other xanthine alkaloids, including theophylline and theobromine, and other substances, such as tannic acid.

Source: Baidu encyclopedia caffeine? Sohu.com unveiled the mystery of decaffeinated coffee and decaffeinated coffee.