Coffee basic knowledge how much coffee to drink every day
[guide] Coffee is the best way to refresh your mind, especially for many white-collar workers, it can be said that as long as they are at work, they always have coffee in hand. But we all know that coffee needs to be drank in moderation, and if you drink too much coffee, it will do great harm to your health, but many people will question it. So how many cups of coffee a day is best for our health?
1 cup of coffee
The upside: Greek researchers studied 485 people over the age of 65 and found that one cup of coffee a day can keep arteries healthy and stabilize blood pressure. A survey of 600 volunteers at the University of Bristow in the UK also showed that one cup of coffee a day can boost brainpower.
The downside: it takes eight hours for caffeine to be fully excreted, so if you drink coffee after 3 or 4 p.m., it's easy to have sleep disorders.
2 cups of coffee
Benefits: a study by the University of Florida found that 200 milligrams of caffeine, equivalent to two cups of coffee, can prevent memory loss and Alzheimer's disease. Research in the International Journal of Sports Medicine also shows that drinking coffee 30 minutes before exercise can help improve performance.
The downside: if you are pregnant, you should consume less than two cups of coffee, otherwise it will increase the risk of miscarriage.
3 cups coffee
Benefits: a study published in the American Journal of Chemical Medicine found that three cups of coffee a day reduced women's risk of ovarian cancer by one percent. Men who drank three drinks a day had a 40% lower risk of gallstones.
The downside: a 2006 study in the United States showed that three cups of coffee a day increased heart rate and blood pressure slightly, which may increase the risk of heart attack.
4 cups coffee
The upside: four cups of coffee contain about 400 milligrams of caffeine, reducing the risk of oral and throat cancer by 39 percent, according to a study by the University of Utah. In addition, it can reduce the risk of colon cancer, breast cancer and type 2 diabetes.
The downside: four cups of coffee a day doubles the risk of rheumatoid arthritis.
How many cups of coffee a day is best? From these introductions, we will find that no matter how many cups of coffee we drink has its advantages and disadvantages, so we must comprehensively measure this problem, only in this way can we give better play to the value of health care and ensure our healthy diet.
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