What effect will drinking coffee for a long time bring to the body?

Most friends think that drinking coffee is harmful to health. Many friends think that coffee contains high caffeine, and long-term drinking may cause certain nerve irritation and pose a threat to health, because vulnerable groups, such as infants, children, pregnant women and elderly friends, all suggest that it is best not to touch coffee. So coffee has planted bad seeds in people's minds, and people may drink coffee occasionally. However, the fact may not be what we think. Recently, many studies have found that it is good for people to insist on drinking coffee properly every day! First, clarify a misunderstanding: Is the caffeine content in coffee really high?

Caffeine generally comes from coffee beans, that is, coffee tree seeds. There are many kinds of coffee, and different coffees contain the same caffeine. Several common coffees with less caffeine content have even less caffeine content than green tea and black tea. Aren't we brave to drink green tea? It's okay to have some coffee. Coffee with high caffeine content belongs to espresso. 100ml contains 173mg of caffeine, but it is espresso. We don't drink much, and the caffeine content after brewing may be 30~50mg/ 100ml. The caffeine content in common black coffee and decaffeinated coffee is1.1mg/100 ml ~ 45 mg/100 ml, and the caffeine content is not high. Compared with some functional drinks, such as Red Bull 100ml containing caffeine 133mg, Cola 100ml containing no less than 20mg of caffeine, black tea containing 40mg/ 100ml on average, oolong tea and green tea containing about 20 ~ 30 mg/65438+.

Many studies have found that people who drink coffee have a lower risk of dying of heart disease and cancer. Some studies have also found that people who are willing to drink 2-3 cups of coffee every day have a lower incidence of diabetes, breast cancer, stroke and Parkinson's disease. , but it is best to choose black coffee with a lower degree of processing. Of course, coffee still contains caffeine. Some surveys have found that if you drink more than 4 cups a day, it may have a certain impact on your nerves and increase the incidence of osteoporosis. We should choose coffee with low degree of processing, such as black coffee. We can add sucrose and milk to taste, but it is best to avoid instant coffee and internet celebrity coffee. These coffees contain more sucrose, cream and other ingredients, not only high sugar content, but also some trans fatty acids, which are unhealthy fatty acids and will increase the probability of inducing cardiovascular and cerebrovascular diseases.

Of course, we should also treat drinking coffee rationally. Although many recent studies have found the benefits of coffee, there is no conclusive investigation that coffee is absolutely beneficial to human body. If you have daily coffee habits, as recommended above, do not exceed 4 cups (100ml cups). In addition, as mentioned above, pregnant women, infants, children and elderly friends had better not drink coffee.