What are the functions of coffee, green tea and red wine?

The benefits of drinking coffee 1. Coffee contains some nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. But also free fatty acids, caffeine, tannic acid and so on. 2. Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs and play a great role in constipation. Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight. 3. Coffee has the function of relieving alcoholism. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it. 4. Coffee can relieve fatigue. To eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions. Three cups of coffee a day can prevent gallstones. 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%. 6. Drinking coffee regularly can prevent radiation injury. Radiation hazards, especially electrical radiation, have become the prominent pollution at present. Baba's Indian atomic researchers reached this conclusion in mouse experiments and said it can be applied to humans. 7. The health function of coffee. Coffee has the functions of resisting oxidation, protecting the heart, strengthening bones and muscles, benefiting the waist and knees, stimulating appetite, promoting eating, reducing fat and digestion, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and relieving spasm. 8. The influence of coffee on mood. Experiments show that the average person absorbs 300 mg (about 3 cups of brewed coffee) every day, which will have a good influence on a person's alertness and mood. The disadvantages of drinking coffee Excessive drinking in the case of long-term intake, a large dose of caffeine is a drug, which will lead to "caffeine poisoning". Caffeine poisoning includes addiction and a series of physical and psychological adverse reactions, such as nervousness, irritability, anxiety, tremor, muscle twitching (hyperreflexia), insomnia and palpitation (most people take caffeine because of its stimulating effect, and many students take caffeine tablets when preparing for exams and working at night). Under the strict definition of addiction, addiction is only when the dose is gradually increased. Caffeine dependence is more appropriate, but under a widely accepted definition, all chronic behaviors that are difficult to get rid of are called addiction, so it can also be described as caffeine addiction. In addition, because caffeine can increase gastric acid, continuous high-dose intake will lead to peptic ulcer, erosive esophagitis and gastroesophageal reflux disease. However, because both regular coffee and decaffeinated coffee can stimulate gastric mucosa and increase gastric acid secretion, caffeine may not be the only ingredient in coffee. Four kinds of mental disorders caused by caffeine verified by Diagnostic and Statistical Manual of Mental Disorders (fourth edition) include caffeine overexcitation, caffeine anxiety, caffeine sleep disorder and other caffeine-related disorders.