Coffee knowledge sharing: you like coffee, but is drinking coffee harmful to your health for a long time?

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What's the impact of drinking coffee regularly:

It is common to see symptoms of insomnia and anxiety caused by caffeine. Using more than 500 milligrams of caffeine a day can make people anxious, irritable, restless, etc.; if you use more than one gram a day, you may have thinking, loose speech, and arrhythmia. Some people even have tinnitus, and when the dosage reaches 10 grams or more, it may cause respiratory failure and die.

Caffeine is a stimulant that excites the sympathetic nerve, exhilarates the mood, makes the mind clear and agile, eliminates fatigue and drowsiness, and speeds up blood circulation. In daily life, we know that coffee and tea contain caffeine, but some chocolates and carbonated drinks, and even some proprietary medicines for colds, contain caffeine to some extent. For people who are already addicted to caffeine, if they suddenly stop using caffeine, there may be a so-called "withdrawal process". Withdrawal symptoms usually begin in 12 to 24 hours, peak in 20 to 48 hours and last for about a week. the main withdrawal symptoms are headache and burnout, as well as irritability and depression.

Many scientists point out that so far, there is no evidence that moderate coffee drinking is harmful to the human body, not even minor harm. Studies have shown that drinking moderate amounts of coffee and drinking two to four cups a day will do no harm to your health. Other studies have found that women drinking too much coffee can lead to bone loss, but this is not true. The results show that drinking more than three cups a day can lead to gastrointestinal diseases, which can stimulate intestinal contraction and cause diarrhea. Often drinking coffee on an empty stomach causes excessive secretion of gastric acid, resulting in gastric ulcers or excessive gastric acid. To induce gallstones, a little bit of caffeine will stimulate the contraction of the gallbladder, which may cause pain in people with gallstones. It will have the effect of refreshing and relieving fatigue. Caffeine has medical value. It can dilate the arteries leading to the heart and increase blood flow. It can also help the arteries in the head contract and help relieve migraines.

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