Basic knowledge of coffee beware that drinking too much coffee is poison

Coffee is used to nourish one's health, and drinking too much is poison.

Drinking one cup of coffee a day can effectively prevent ovarian cancer and heart disease; two cups a day doubles a pregnant woman's likelihood of miscarriage

According to a study published in the medical journal Obstetrics and Gynecology in January 2008, of the 1063 adult women interviewed from 1996 to 1998, 172 had miscarriages, which were characterized by coffee as a drink; more than 200ml of caffeine per day (about 65ml of caffeine in a cup of instant coffee and 90ml in a cup of ground coffee) doubled the likelihood of miscarriage in pregnant women.

Professor Shirley Tao Jung of Harvard Medical School, in conjunction with researchers at the University of Utah, conducted a detailed analysis of health samples of 121000 women aged 30 to 35 around the world, and released the results on January 22nd, saying that drinking one cup of coffee a day can significantly reduce women's risk of developing ovarian cancer.

Coffee: from relieving fatigue to curing illness

Since the legendary discovery of coffee by Ethiopian shepherds in the 6th century AD, people have been used to relieving fatigue with coffee. Up to now, people with a little common sense know that coffee can relieve fatigue for only two hours, and then they will feel more sleepy. However, the medicinal function of coffee has never been correctly evaluated.

An English newspaper in 1657 described coffee as a panacea for strengthening the heart and lungs, promoting digestion, treating eye diseases, edema and gout. In 1674, many European women asked to close all cafes because men were obsessed with coffee. In November 2006, German scientists specifically rectified the preventive and therapeutic effects of coffee on some diseases, proving that coffee drinking is not directly related to the prevention of diabetes and kidney cancer, and dispelling rumors that drinking coffee can lead to dehydration.

But coffee does help to prevent some diseases. Scientists at Bregan Women's Hospital and the Harvard School of Public Health showed that drinking coffee regularly did not cause high blood pressure by tracking 155594 women who took part in health examinations. researchers at the University of Iowa say drinking one to three cups of coffee a day can reduce the risk of heart disease by 30 per cent. In addition, coffee has an alleviating effect on pollen allergy and asthma.

Coffee: not for everyone

Even if coffee is as good as a thousand, it is best for some people not to touch it. Because the caffeine in coffee is the best "benign stimulant", for some diseases, it may be the "arsenic" that aggravates the disease.

1. High blood pressure: caffeine in coffee may cause a sudden rise in blood pressure.

two。 Kidney failure: coffee is high in potassium, which is very disadvantageous to kidney failure patients with high blood potassium.

3. Gastric ulcer: coffee stimulates the secretion of gastric acid, which aggravates the symptoms of gastric ulcer.

4. Diabetes: caffeine reduces insulin secretion and glucose tolerance.

5. Epilepsy: the excitatory effect of caffeine is poison to patients with epilepsy.

6. Iron deficiency anemia: coffee strengthens metabolism, drinking more than 4 cups of coffee a day can also cause calcium loss.

7. Insomnia: don't say anything. Have a drink before you go to bed.

If you want to lose weight, you can get into the habit of drinking coffee every day, which is a good way for lazy people to lose weight and burn fat. Remember, however, that it must be black coffee, not instant coffee or cappuccino with cream and sugar. For those who do not like coffee, it is recommended to replace the drink with tea, because tea, like coffee, also contains caffeine, which can not only refresh, but also prevent many diseases. As for the soda that also contains caffeine, don't try it. If you drink that kind of drink, you will only gain weight, and the only thing that will be fat is your stomach.