How many cups of coffee per day will be the best?

Coffee has become a fashionable drink at present. You can see all kinds of people, especially for the white-collars, sitting in the cafes which are run by in increasing number of people. In addition to the fashion of drinking it, coffee has many benefits, including stimulating people in the morning and during working hours and increasing the effectiveness of pain killers—especially migraine medications—and riding some people of asthma. However, health experts point out that it is bad for health to drink coffee too much. A lot of risks of drinking excessive coffee have come out for white-collars. So, it is very good for health if white-collars drink it appropriately. Health experts recommend that those people who love coffee very much and who prefer communication with others should not it too much. It is appropriate to have 2-3 cups, 3 cups at most a day, for white-collars. Many coffee drinkers are familiar with “coffee jitters”, which is a nervous condition that occurs when one has had too much caffeine. Coffee can also increase blood pressure among those with high blood pressure, but some studies also showed that coffee still decreased the chances of dying from heart disease if drunk properly. Coffee can often cause insomnia, while paradoxically it helps a few sleeping more soundly, as well as causing anxiety and irritability with excessive coffee consumption . More seriously, there are also sex specific effects with reducing fertility in women, and there may be risks to a fetus if a pregnant woman drinks 8 or more cups a day. U.S. scientists have found that smokers have more chances of suffering from pancreatic cancers than non smokers if they drink three cups coffee a day or more. Caffeine has negative effect on normal cells by promoting cell aging. Those who drink coffee have high probability of suffering from pancreatic cancers, at least 2-3 times, than those who do not drink it. About 2 million people die of pancreatic cancers in United States, more than half of who were caused by drinking coffee. Researchers from Harvard University have found that it is much easier to develop bladder cancer if people often drink coffee, and more dangerous for women. Japan’s research reports also said that a number of male patients with gastric cancer prefer to drink coffee. Although caffeine is not an addictive drug, experts believe that it is better to quit it gradually than immediately, in case of triggering migraine and bad-temper. Coffer drinkers should reduce to take it, until to 3 cups a day.

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