Caffeine has 13 effects on ordinary people. Adults can consume up to 400 milligrams of caffeine a day.
For professional baristas, please follow the coffee workshop (Wechat official account cafe_style)
People usually choose to drink coffee, tea and energy drinks to refresh themselves, essentially consuming a certain amount of caffeine. But what happens to the human brain and body when ingesting this colorless and tasteless ingredient?
1. Most healthy adults can consume up to 400 milligrams of caffeine a day, equivalent to five cans of 4-ounce Red Bull.
2. During intake, the stomach absorbs caffeine first, then enters the blood circulation after 1 to 2 hours, and takes 5 to 6 hours to consume the caffeine intake.
3. Caffeine can improve memory to some extent, but it is more effective for non-addicts.
4. A moderate amount of caffeine can make your energy more concentrated, but too much caffeine will cause irritability, which is counterproductive.
5. Caffeine inhibits adenosine (Adenosine) in the brain and exhilarates people. By inhibiting adenosine (Adenosine) and promoting the secretion of Dopamine and Glutamine, caffeine can increase awakening and reduce the risk of depression.
6. Some studies have shown that caffeine can immediately reduce appetite. However, most studies on the effects of caffeine on appetite show that the duration is too short, or it is only effective for certain animals, so there is no conclusive evidence that drinking coffee regularly helps to lose weight.
7. An appropriate amount of caffeine will immediately increase high blood pressure, but will not cause harm to the human body
8. Caffeine increases gastric acidity and may cause heartburn (gastroesophageal reflux).
9. Drinking too much caffeine can lead to a surge of adrenaline, leading to grumpy and emotional
10. Caffeine helps to speed up the time when the drug takes effect (Onset). Excedrin is no stranger to people with periodic migraines. But many people don't know that it contains caffeine in addition to pain-relieving Acetaminophen and aspirin. There is evidence that caffeine acts faster, prolongs action time and improves efficacy when mixed with specific painkillers such as Acetaminophen and aspirin.
Caffeine is the most commonly used stimulant in sports and the most commonly used psychotropic substance in the world, because caffeine can change the way people feel and interact with the world around them.
12. Charles Czeisler, a neuroscientist at Harvard University, said: caffeine combined with electricity can help humans escape the natural patterns of sleep and wakefulness and get rid of the solar cycle.
13. National Geographic (National Geographic) commented on the impact of caffeine: "it can be said that it has helped mankind realize the transformation from an agricultural society to an industrial society."
Attachment: comparison of caffeine content of various drinks (in cups), from left to right:
First row: freshly brewed coffee, filtered coffee, instant coffee, espresso
Second row: black tea, green tea, white tea, decaf coffee
Author: Jiang Jingjin
Source: Hua Lizhi
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