Which time is not suitable for coffee?

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1. Drinking coffee after a good meal makes the esophagus narrow.

What does coffee have to do with "reflux"? The caffeine in coffee stimulates the sphincter that should have been closed at the lower end of the esophagus, making it more relaxed, allowing stomach and duodenal contents to return to the esophagus, so that gastric acid, pepsin, bile salt and trypsin damage the esophageal mucosa. cause inflammation, erosion, ulcers. The habit of drinking coffee after satiety lasts for a long time, with repeated erosion and ulcers in the esophagus, resulting in granulation and scar formation, and finally esophageal stricture caused by contraction.

two。 Drinking coffee on an empty stomach can hurt your stomach

What's wrong with drinking coffee on an empty stomach? Drinking coffee on an empty stomach will stimulate and excite the sympathetic nerve, which will reduce appetite. In addition, caffeine is a strong stimulant of gastric acid secretion. When fasting, strong acid stimulates the gastric mucosa, causing discomfort. Those with gastric ulcers or duodenum can aggravate the disease. Experts from the American University of Health Sciences say that people become sensitive when they drink coffee immediately after getting up. It is recommended to eat some staple foods such as bread before drinking coffee. People with stomach problems should stop drinking.

3. People with hypertension should drink coffee carefully when they are stressed.

What happens when you drink coffee when you are nervous and stressed? The study found that even the dose of caffeine in a cup of coffee (140mg) can affect blood pressure, especially under stress. If emotional tension is added at this time, it will have a dangerous multiplication effect. People who consume too much caffeine, especially those with heart disease, are prone to arrhythmia and cardiovascular disease. A team of researchers from the Department of Psychology at La Trobe University in Melbourne found that people who were stressed and addicted to coffee were three times more likely to have auditory hallucinations and hallucinations than others. The effect is similar to taking too much caffeine.

4. The refreshing effect of coffee varies from person to person.

Refreshing, people will think of coffee first, but scientists are controversial about the role of caffeine. An experiment by the Sleep Medicine Research Center of St. Luke's Hospital in the United States found that caffeine is refreshing, but its effect varies from person to person. An article in the Journal of Neuropsychopharmacology said: drinking coffee doesn't make people more awake, focused or responsive, it just keeps you awake. The reason coffee keeps people awake is that caffeine inhibits the action of a chemical in the brain called adenosine monophosphate. Usually, adenosine slows down the body's response, and people are excited all the time because caffeine prevents the chemical from getting close to the cells. But the effect of caffeine will pass soon!