Since19th century coffee was introduced to China, people have different views on this kind of beverage. Then, as the subject said, will drinking coffee for a long time do any harm to your health?

First, the answer is, in general, no.

People have different opinions about coffee, such as? Coffee causes cancer? 、? Coffee is bad for the heart? , also said? Coffee can refresh you? 、? Is coffee good for the cardiovascular system? Wait a minute.

So what is the truth? In fact, ordinary people are also dubious, because there is no energy to verify, so there are different opinions about the advantages and disadvantages of coffee. In order to provide you with reliable evidence, I also consulted several domestic and foreign documents, including American John? Professor Roland Griffith of Hopkins Medical College has made an in-depth study on this. In his research paper, he pointed out that caffeine can affect people's intelligence. The average American adult consumes 300 milligrams of caffeine a day, which is equivalent to two cups of coffee. This level of caffeine intake can have a positive impact on people.

Second, there are some mental functions.

A small dose of caffeine can make people clear-headed and quick-thinking. However, high-dose caffeine intake will have negative effects, making people anxious and overexcited. But at the same time, he also shows that this negative effect will not pose a threat to human health, nor will it be addictive. In fact, compared with addictive substances such as alcohol and nicotine, caffeine (an important component of coffee) has a relatively mild effect. He also pointed out in his paper that there is a clear difference between physical dependence on a substance and actual addiction. Although millions of Americans say that coffee is indispensable, in his view, it is not an addiction, but a physiological dependence. In other words, if they stop drinking coffee, they may have withdrawal symptoms such as drowsiness and headache, but it is not impossible to quit. People can still gradually quit and make the withdrawal symptoms better. But if you are addicted to something, it's hard to quit.

Secondly, to answer the second question, will it cause cancer?

Drinking coffee often won't cause cancer. If coffee can cause cancer, why do so many people drink it? Coffee is recognized as a healthy drink, but drinking coffee must be reasonable and scientific, which is beneficial to health, and it should be timely and moderate. People will inevitably come into contact with all kinds of radiation in their lives, such as light waves and electromagnetic waves. Over time, they will cause harm to the body in different procedures. Drinking coffee in moderation can reduce this harm.