The content of caffeine in coffee is particularly high, which is an important component that can directly act on human nerves, heart and respiratory system. It can keep many organs in the body excited, improve the nerve function in the human body and relieve muscle fatigue. When people are mentally exhausted or physically weak, drinking some coffee in time can promote physical recovery and make the feeling of listlessness disappear quickly.

2, appetizing digestion

After people drink coffee, the absorbed caffeine can not only directly act on the human brain and nerves, but also stimulate the sympathetic nerves and intestines and stomach in the human body, promote the secretion of digestive juice in the intestines and stomach, and improve the digestive function of the intestines and stomach.

3, diuretic sober up

Coffee has certain medicinal value. After it is absorbed by human body, it can directly act on human kidney, improve renal function and promote urine excretion. At the same time, it can also accelerate the decomposition and metabolism of ethanol in human body. Even after drinking coffee, people can decompose the ethanol in alcohol as soon as possible, and can make them light into water and excrete it with urine.

4. Prevent thrombosis

Coffee is not only rich in caffeine, but also rich in linoleic acid. This substance has super hemolytic function, and can directly act on human cardiovascular system, which can promote blood circulation and prevent thrombosis, and has a good preventive effect on stroke and thrombosis in middle-aged and elderly people. Coffee can also dilute blood, reduce blood viscosity, nourish myocardium and improve heart function, and it also has a certain preventive effect on hypertension and hyperlipidemia that often occur in human beings.