How many cups of coffee are best for the heart every day?

Coffee is one of the three major drinks in the world. with the development of the times, it is no longer a drink in western countries, and many people in China also like to drink coffee. However, everyone knows that the harm of coffee exists, you can not drink too much coffee every day, you should control the amount. So, how many cups of coffee are most appropriate to drink every day?

1 cup of coffee

Advantages: Greek researchers studied 485 people over the age of 65 and found that a cup of coffee a day can maintain healthy arteries and stabilize blood pressure. A survey of 600 volunteers by 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 completely excreted, so suppose you drink coffee after 3 or 4 p.m., which briefly interferes with sleep.

2 cups of coffee

Advantages: a study at the University of Florida found that 200 milligrams of caffeine, equivalent to two cups of coffee, can prevent memory loss and Alzheimer's disease. A study in the World Journal of Sports Medicine also shows that drinking coffee 30 minutes before exercise can help improve results.

Disadvantages: suppose it is a pregnant mother, coffee intake should be less than two cups, otherwise it will increase the risk of miscarriage.

3 cups coffee

Pros: a study published in the American Journal of Chemical Medicine found that three cups of coffee a day reduced a woman'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

Pros: a study by the University of Utah found that four cups of coffee contain about 400 milligrams of caffeine, which can reduce the risk of oral and throat cancer by 39 percent. In addition, it can reduce the risk of colon cancer, breast cancer and type II diabetes.

Disadvantages: four cups of coffee a day doubles the risk of rheumatoid arthritis.

More than 5 cups

Pros: 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.

Disadvantages: 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. Along with the addition of blood pressure, it also increases the risk of cardiovascular disease.

Next, let's take a look at the taboos of drinking coffee.

The taboo of drinking coffee

Keep in mind that coffee should not be served with tea. Tannic acid in tea and coffee can reduce iron absorption by 75%. It is appropriate to use warm boiled water to deliver the service.

The tannic acid in tea and coffee reduces calcium absorption. Therefore, the best time to drink tea and coffee is to choose between two meals.

Caffeinated drinks and food, after being consumed by many pregnant mothers, will show disgust, vomiting, headache, rapid heartbeat and so on. Caffeine also passes through the placenta into the fetus, affecting fetal development.

Many doctors believe that pregnant mothers drink 1 to 2 cups of coffee, tea or carbonated drinks a day (6 to 8 ounces each), which will not affect the fetus. However, for the sake of stability, pregnant mothers are best prohibited. Caffeine can increase the abortion rate, so you should drink non-caffeinated drinks.

Coffee is not suitable for children. Caffeine can stimulate the central nervous system of children, disturb their memories, and form ADHD.

Strong tea, coffee and carbonated drinks are also risk factors for digestive tract ulcers; therefore, patients with stomach diseases should not drink more coffee.

Coffee drinks are rich in caffeine, so it is easy to cause tinnitus

Coffee cannot be eaten with ibuprofen. Ibuprofen, a common antipyretic, analgesic and anti-inflammatory drug, has an effect on gastric mucosa, while some caffeine in coffee and cola can also affect gastric mucosa and promote gastric acid excretion. Suppose drinking coffee and cola immediately after taking ibuprofen will aggravate the effect on gastric mucosa. To learn more about common sense, you can also read: "does drinking coffee really hurt your stomach?"