Coffee is thoroughly Exotic drinks. With the gradual increase of international exchanges, like coffee, more and more people. Among the variety of beverages, the study of coffee may most. The scientist said that coffee today cancer, scientists say tomorrow who would be Shang Wei coffee, it really is "do not know who to listen up." If the summary of various studies, the drinking of coffee in the end is good or bad?
Coffee beans extract, the composition of which no less than several hundred. Wherein caffeine is undoubtedly the most important. Although there are "decaffeinated" coffee, coffee lovers, for most, it can not be considered "real" coffee. Caffeine can stimulate the nerve, so the role of coffee first is "refreshing." Especially caffeine plus glucose, can promote each other better so refreshing. Many sports drinks, caffeine is also added as a legal "doping."
Caffeine is not there other "health functions", also attracted the attention of many scientists. Many such studies, overall, there are some studies have shown "Probably effective." For instance, some elderly people after a meal because of low blood pressure and dizziness, if you drink a cup of caffeinated beverage, it is possible to alleviate the symptoms. The so-called "caffeinated beverages", in addition to coffee, tea or cocoa can. Parkinson's disease is a common disease of the elderly, a survey of caffeine on reducing its risk quite effectively. Men drink three to four cups a day will achieve maximum effect, and one or two drinks a day also plays a significant role. Women are now drinking less amount of relationship, one to three cups a day to achieve maximum effect. But interestingly, this effect does not exist for people who smoke. In addition, the caffeine will also help to reduce gallstones, 400 milligrams of caffeine a day (about 34 cups of coffee), the effect can be exhibited. Interestingly, the impact on relations with Type II diabetes and race relations intake is relatively large. In Europe the crowd, drinking six cups of coffee a day can reduce the risk of men of more than 50 percent, while women are reduced by about 30%. In Japanese, the drink three cups a day can be reduced by 42%.
Coffee, in addition to caffeine, also contains a number of other "active ingredient", such as antioxidants. Especially after roasting coffee beans, antioxidant content will increase. Antioxidants help cardiovascular health, but also coffee "harmful substances", such as double-terpene compounds, increases the risk of cardiovascular disease. In this "about each stroke", the dominant party will behold the. Fortunately, two terpene compound can be filtered coffee paper, it is not recommended unfiltered coffee or filter with metal mesh. "Cancer" has a similar effect, the survey shows that three cups of coffee a day may reduce the risk of colorectal cancer. However, baking antioxidant levels increased at the same time, will produce acrylamide, and a large dose of acrylamide showed carcinogenic in animal experiments.
Coffee "poor performance" far more than that. If you drink too much coffee (eg six cups or more) per day may cause addiction, decreased sensitivity to coffee, will further drink more. Drinking too much can cause insomnia, nervousness, stomach upset, nausea, vomiting, rapid breathing and heart rate, headaches, ringing in the ears are other symptoms. For heart disease, five cups a day to reach the amount of "unsafe".
Many people are concerned about whether pregnant women drink coffee. Based on current scientific evidence, the general said: no more than two drinks per day (about 200 milligrams of caffeine) is acceptable. Pregnant women more than this amount will increase miscarriage, premature or underweight babies risk. And breastfeeding mothers, more than this amount may lead to stimulate the baby's digestive tract, and the impact of infant sleep and other risks.
In general, children are more sensitive to caffeine than adults. Taking into account the avoidance of side effects is more important for children, it is recommended that children should not drink coffee.
Although survey data show that coffee can reduce the risk of Type II diabetes, but the effects of caffeine on blood sugar is more complex, increasing and decreasing findings have. So, for people with diabetes, if you drink coffee, then we must pay attention to monitor their blood sugar changes, make timely adjustments.
In addition, coffee can also increase the loss of calcium. If you have symptoms of osteoporosis, the daily intake of caffeine, do not exceed 300 mg (equivalent to a couple of drinks and coffee). Elderly women are prone to osteoporosis, there is need for more attention.
For coffee, it should be noted that the response to the drug. Most need to be careful of is ephedrine, it has a stimulating effect of nervous excitement. If you add coffee, its effect will be greatly enhanced, which appeared in "overdose" symptoms. And cold medicine containing ephedrine are common, such as Contac, white with black, and so on.
In addition, many drug metabolism with the metabolism of caffeine may influence each other. Some of this effect increased effects of caffeine (including of course the side effects), increase the effect of some drugs, some lowering effect of the drug. The dose of drug effect is in accordance with the normal use of the design, whether enhanced or diminished, it will affect the treatment. Caffeine can interact with many drugs, the average person probably can not remember, so the easiest way is: taking various drugs during not drink coffee.
As a component of a complex natural extracts, different ingredients have different functions, different experiments give different results is not surprising surprised. As a beverage, coffee may have amazing heart "health function", there may be worrying "side effects." These findings are mostly epidemiological investigation, the conclusion can be no definitive. Comprehensive study of these positive and negative aspects of the relatively widely accepted recommendation is: healthy adults, drink or three drinks coffee every day, "benefits" than the "risk"; for pregnant mothers, no more than two drinks, can also be accepted. Other people, we need to weigh up the specific circumstances.
(Finishing from scientific squirrel)
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