Black coffee can refresh you. The caffeine content in black 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 excited, improve nerve function and relieve muscle fatigue. Black coffee is a kind of coffee, which means that coffee without any modification tastes more bitter than other kinds of coffee.

First, refresh your mind. Black coffee contains a lot of coffee raw materials, which is bitter and irritating to the nerves, heart and respiratory system. Therefore, moderate consumption of black coffee can refresh the mind and slow down the fatigue of the brain and muscles.

Second, I am in a good mood. Drinking black coffee can relieve the physical and mental fatigue of the day and adjust the mood and mood.

Third, appetizing food. Coffee raw materials in black coffee can stimulate sympathetic nerve, stimulate gastrointestinal secretion of gastric acid, promote digestion, prevent abdominal distension and gastroptosis, promote gastrointestinal hormones and peristalsis hormones, and quickly relieve constipation.

Fourth, diuretic hangover. Drinking coffee after drinking can promote the conversion of ethanol in the blood into acetaldehyde, which is excreted through the kidneys and plays a role in sobering up.

Fifth, promoting blood circulation and removing blood stasis. The linoleic acid contained in black coffee has the functions of hemolysis, preventing thrombosis, enhancing vasoconstriction, relieving migraine and reducing the probability of stroke.

Sixth, prevent gallstones. Coffee raw materials in black coffee can reduce the content of cholesterol in bile and have a great preventive effect on the formation of gallstones.

Seven, prevention and treatment of cardiovascular diseases. In the process of brewing coffee at high temperature, an antioxidant compound will be produced, which is helpful for anti-cancer, anti-aging and even preventing cardiovascular diseases.