Coffee is a beverage made from roasted coffee beans, which is popular in the world with cocoa and tea. Daily drinking coffee is made of coffee beans with a variety of different cooking utensils, and coffee beans refer to the kernels inside the fruit of the coffee tree, and then roast with appropriate methods. It has the effect of refreshing, promoting metabolism and diuresis.1, refreshing: coffee contains caffeine, and harmless to the body, caffeine can stimulate the cerebral cortex, promote blood vessel dilation, improve metabolism, reduce muscle fatigue, so it can refresh the brain.2, promote metabolism: coffee can stimulate the central nervous system, so that the human metabolism can be accelerated, so as to achieve a certain weight loss effect.3, help defecation: coffee for many people will have the effect of stimulating defecation, and occasionally when defecation is not smooth, drinking a cup of strong coffee will have a defecation effect.4, diuresis: coffee can promote water discharge in the body, so as to achieve the effect of diuresis.5, digestion: coffee after a meal is good for the stomach, especially after eating greasy things, such as meat or seafood, drinking a cup of coffee will have a good role in addition to greasy and digestive. Therefore, people with poor stomach and intestines can drink a little coffee to help relieve their stomach discomfort, but be sure to pay attention to moderate drinking.咖啡是用经过烘焙的咖啡豆制作出来的饮料，与可可、茶同为流行于世界的主要饮品。日常饮用的咖啡是用咖啡豆配合各种不同的烹煮器具制作出来，而咖啡豆是指咖啡树果实里面的果仁，再用适当的方法烘焙而成。具有提神醒脑、促进新陈代谢、利尿等功效。1、提神醒脑：咖啡中含有咖啡因，且对身体无害，咖啡因可以刺激大脑皮层，促进血管扩张，提高新陈代谢，减少肌肉疲劳，因此能够提神醒脑。2、促进新陈代谢：咖啡可以刺激中枢神经系统，使人体新陈代谢加快，从而可以达到一定减肥效果。3、助排便：咖啡对很多人都会有刺激排便的作用，偶尔排便不顺畅时，喝杯浓咖啡会有通便效果。4、利尿：咖啡可以促进体内水分排出，从而达到利尿的效果。5、助消化：咖啡在饭后喝对胃有好处，尤其是吃过油腻的东西，比如肉或者海鲜之后，喝一杯咖啡会有很好的除油腻、助消化的作用。因此肠胃不好的人可以喝一点咖啡来帮助缓解自己的肠胃不适，但是一定要注意适量饮用。
