The refreshing function of coffee is generally recognized. 1 cup of coffee can make us glow for 4 hours. So drinking 1 cup after a nap can keep you awake. It works occasionally, but it is not good for people who drink coffee for a long time.
Moderate caffeine can stimulate cerebral cortex, promote sensory judgment, memory and emotional activities, make myocardial function more active, dilate blood vessels, enhance blood circulation and improve metabolic function.
For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Recently, researchers at Harvard University found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.
Extended data:
The word "coffee" comes from the Greek word "Kaweh", which means "strength and enthusiasm". Around the world, people like drinking coffee more and more. The ensuing "coffee culture" is full of every moment of life. Whether at home, in the office or in various social occasions, people are enjoying coffee, and coffee is gradually linked with fashion and modern life.
Coffee is a stimulant, which has many effects on human body. It can induce diuresis, stimulate the central nervous system and respiratory system, dilate blood vessels, accelerate the heartbeat, enhance the strength of striated muscles and relieve brain and muscle fatigue.
3, avoid drinking coffee on an empty stomach, because coffee will stimulate gastric acid secretion, especially patients with gastric ulcer should be more cautious. Coffee, as a drink, should be properly drunk according to personal circumstances. Generally speaking, in nutrition, we still emphasize a balanced diet rather than spicy food.
References:
Baidu encyclopedia-coffee