How much coffee to drink every day is the best amount to drink coffee.
Coffee is an indispensable drink for Westerners in life, whether it is waking up in the morning to awaken the sleeping soul, refreshing at work or the leisure of afternoon tea.
Caffeine "is a natural ingredient found in the leaves, seeds or flesh of more than 60 plants, such as coffee beans, cocoa beans, cola beans and tea, while the most common food sources are coffee, tea, chocolate and cool drinks (such as cola, tea-containing drinks). Caffeine has a mild central nervous stimulation and can reduce fatigue, enhance memory, reasoning and intellectual flexibility. As long as a small amount of 32 milligrams (about 1 cup of cola) can improve auditory and visual reaction time, but everyone's sensitivity to caffeine varies greatly, and some people think that increasing the amount of flexible caffeine may make some people feel uncomfortable, and the elderly may be more sensitive to the effects of caffeine.
There seems to be a constant debate about whether coffee brings more health benefits or more harm. How much coffee should I drink every day?
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: a study by the University of Utah found that four cups of coffee contained about 400 milligrams of caffeine, which reduced the risk of oral and throat cancer by 39 percent. 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.
More than 5 cups
The upside: a 10-year study of 90,000 people by researchers in Tokyo found that five cups of coffee a day reduced the risk of liver damage by three to four.
The downside: caffeine interferes with calcium absorption and increases the risk of osteoporosis. Drinking too much will accelerate the loss of minerals and vitamins in the body. While increasing high blood pressure, it also increases the risk of cardiovascular disease.
Even if there are many reasons why you love coffee, make it a good partner for a healthy life first. Therefore, experts warn that for most people, the total daily intake of caffeine had better not exceed 250 mg, which is equivalent to drinking 3 cups of coffee.
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Drinking coffee may be related to genes
Researchers at Erasmus University Medical Center in the Netherlands surveyed 18000 people that their love of coffee may have something to do with genes, xinhuanet.com reported. The results show that the human liver produces several different proteins that break down caffeine, and the amount of these proteins is closely related to the body's tolerance to caffeine. Responsible for making the genetic packages of these proteins
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New research shows that coffee can reduce depression in women
Women who drink coffee every day are less likely to develop depression than those who don't, according to a new study. The researchers followed more than 50,000 women over a 10-year period and found that women who drank at least four cups of coffee a day had a 20 per cent lower risk of depression and 15 per cent less than those who drank two or three cups a day. Of these 50739 women,
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