Why can coffee make people love it? coffee is fascinating.

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There are about 1 billion people in the ball, and the first thing in the morning is to have a cup of coffee to start their day. Among these 1 billion people, the proportion of Chinese is increasing year by year. A survey shows that 70% of Chinese people drink coffee, and 30% of them have formed the habit of drinking coffee every day. However, when we were nurtured in the fragrant and pleasant "tea culture" from an early age, we always felt a little separated from the bitter Western-style "coffee culture". Many people mention "caffeine" as if they are facing the enemy, and the report that "drinking coffee leads to calcium loss and is prone to osteoporosis" makes us not hesitate to throw it into the category of "bad drinks". What kind of effect does coffee have on health? Sheng Mingjun interviewed cardiovascular, oncology, digestive and other experts and found that many of the health benefits of coffee surprised us.

The second largest drink after water

Apart from oil, coffee is the oldest and most traded commodity in the world. In western countries, people hurrying to work with a cup of coffee can be seen everywhere on the street in the early morning. Starbucks chain stores have sprung up everywhere in China, and even many old people can recognize its "banshee" logo at a glance. According to the statistics of the International Coffee Organization, the annual consumption of coffee in the world is 400 billion cups. Every second, 14000 cups of coffee are drunk in the world. Coffee has become the second largest drink in the world after water. Finns are among the world's top coffee drinkers, with a per capita coffee consumption of 12 kilograms in 2008. Even in some tea culture countries in Asia, coffee is becoming more and more popular, and Japan has replaced Germany as the world's second largest consumer of coffee. In the United States, more than half of people drink coffee every day, and nearly 90 percent must have coffee for breakfast. By contrast, although caffeine is well-known in China, its acceptance is not very high. According to the survey, the average Chinese consume less than 100 cups of coffee per person per year. Among coffee drinkers, 56% are men and 44% are women. Among them, the largest number of people aged 41 to 50, accounting for 24%, followed by those aged 21 to 30, accounting for 18%.

Ennis Doyli, one of the founders of the Coffee Scientific Information Society, pointed out that there were many misunderstandings about coffee in the past, and it was only in the past decade that coffee was regarded as a healthy drink. It is increasingly found that coffee contains not only caffeine, but also protein, fat, nicotinic acid, tannic acid, alkaloids, potassium, dietary fiber and other nutrients.

The unknown benefits of coffee

Professor Hu Dayi, a famous cardiovascular expert in China, has co-authored a book called 101 reasons for Coffee innocence with former World Heart Federation President Mario Malario and other experts. The book says that as long as you drink it properly and regularly, coffee is more protective of the heart than wine. Li Weimin, vice president of the first affiliated Hospital of Harbin Medical University and director of the Department of Cardiovascular Medicine, told reporters that caffeine can improve the contractile function of the left ventricle and the blood flow of the coronary artery, so drinking moderate amount of coffee can protect the heart and reduce the incidence of cardiovascular disease. For those who are worried about a faster heart rate, he suggests that one or two cups a day is appropriate, and one for the elderly. Not too strong, with or without sugar as much as possible.

In addition to being "spoiled" by cardiovascular experts, coffee is also respected by many other medical experts.

Coffee can prevent cancer. Liu Jinying, deputy director of the Nutrition Department of the Cancer Hospital of the Chinese Academy of Medical Sciences, recommends that the polyphenols contained in coffee are strong antioxidants. Drinking some coffee every day has a certain effect not only in cancer prevention, but also in cancer treatment.

Coffee protects the liver. "Coffee is rich in polyphenols that also protect the liver." Liu Jinying advises hepatitis patients to drink some coffee every day, which is good for the repair of liver cells. Japanese experts found that in addition to nourishing the liver, coffee can also relieve alcohol, in which chlorogenic acid can avoid alcoholism.

Coffee prevents type 2 diabetes. Many studies have shown that the incidence of type 2 diabetes is lower among coffee drinkers because a substance in coffee can reduce the absorption rate of glucose in the intestines and change the location of glucose absorption.

Coffee helps digestion. Tao Lin, deputy director of the Department of Gastroenterology of the Beijing traditional Chinese Medicine Hospital affiliated to the Capital Medical University, told reporters that meat eaters had better have a cup of coffee after meals, which has a good effect on relieving greasy and helping digestion. In addition, the content of soluble dietary fiber in coffee is higher than that in orange juice, and caffeine can stimulate the intestines and accelerate peristalsis. Therefore, drinking coffee has the effect of relieving constipation.

Coffee prevents depression. People who drink coffee regularly will feel happy and restless, and their mood will be improved. Li Weimin points out that when you are upset or depressed, having a cup of coffee can really calm your mind.

Coffee is a sports partner. Research from the University of Georgia shows that drinking two cups of coffee after exercise can help relieve muscle soreness.