Caffeine and healthy drinking Coffee

According to the old saying, coffee drinking is harmful to health, at least more harmful than beneficial. Yet until now, people around the world have spoken highly of coffee: "Coffee is the best pick-me-up. "Coffee literally means" energetic." Westerners can't live without coffee. In 1700, there were 3000 cafes in London. At that time, London's population was only 600,000. That is to say, there was an average cafe for 200 people. Coffee's comments mainly revolve around caffeine: "Coffee is addictive, easy to cause myocardial infarction and cerebral hemorrhage, harmful to chromosomes, can lead to weight gain..."

Documentary warnings about caffeine date back to 1911, the year authorities sued the American Coca-Cola Company, saying the new drink might be harmful to health. Coca-Cola won that case. But things didn't end there, and the 1970s saw the start of a real anti-coffee wave. At the time, many researchers suggested a link between caffeine and heart disease and bladder cancer. A toxicologist in California said he had consulted the coffee industry for a quarter of a century and had seen four or five thousand articles critical of coffee and caffeine, in which coffee was described as a drink associated with almost every disease.

Humans have been consuming caffeine for 8000 years. The latest research is a vindication of coffee, showing that coffee and caffeine are healthy. How healthy is it? Some people say that if we don't get caffeine from coffee, we'll have to add caffeine to our drinking water.

Twenty-four studies reported that coffee drinkers were less than 25 percent likely to develop colorectal cancer. Other studies have shown that coffee drinkers are less likely to develop liver cancer and type B diabetes. Recently, scientists have even shown that caffeine can delay the onset of Alzheimer's disease and alcoholic liver damage. The scientific community emphasized that none of this series of studies was sponsored by coffee growers or coffee producers, but rather was a byproduct of a large health research program funded by the U.S. Institutes of Health. Coffee can also reduce the chance of kidney stones due to its diuretic effect. Coffee is also a mild antidepressant for some people, pulling people back from suicidal thoughts, though scientists believe it will take 10 to 20 years to figure out how.

Most people think of coffee as a machine that only produces caffeine, but coffee actually contains about 2000 chemicals. Coffee has anti-cancer effects because coffee contains a group of antioxidants, which are also commonly found in red wine, chocolate, tea and other fruits and vegetables. The caffeine content of commonly used beverages is roughly as follows: Filtered coffee contains 140 mg per 200 ml, espresso 100 mg per 60 ml, instant coffee 80 mg per 200 ml, black tea 80 mg per 200 ml, green tea 40 mg per 200 ml, dark chocolate 35 mg per 30 g, cola 32 mg per 330 ml, decaffeinated coffee 6 mg per 200 ml, caffeine tablets 20-200 mg per tablet.

Western adults consume an average of about 280 milligrams of caffeine a day, and as Westerners who have long been coffee drinkers, they advocate drinking no more than four cups of coffee a day. In other countries, it is more appropriate to control 2 to 3 cups. Despite fundamental changes in the evaluation of coffee and caffeine, coffee should still not be drunk in large quantities for a long time, especially for patients with hypertension, elderly women, pregnant women, children and patients with stomach problems.