First of all, drinking coffee will affect the quality of sleep. Coffee contains quite high caffeine, which can reach 0.4 g-1g/100 g. The function of caffeine is now very clear, which can excite nerves.
This is because the chemical structure of caffeine is very similar to that of a chemical substance in the human brain that causes brain excitement, which can make the brain in an excited state and lead to insomnia. Often this will affect the growth and development of children.
Drinking coffee for a long time can also cause cardiovascular disease. Such as: rapid heartbeat, high blood pressure, etc. If teenagers suffer from gastrointestinal diseases, drinking coffee can aggravate the condition, because after drinking coffee, gastric acid will increase, which will stimulate gastric mucosa and ulcer surface.
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Coffee drinking taboo:
Remember that coffee should not be drunk with tea at the same time. Tannic acid in tea and coffee can reduce iron absorption by 75%;
Tannic acid in tea and coffee will reduce calcium absorption. Therefore, the time for drinking tea and coffee is best to choose between two meals;
Caffeine-containing drinks and foods will cause nausea, vomiting, headache and rapid heartbeat after being drunk in large quantities by pregnant women. Caffeine will also enter the fetus through the placenta, affecting fetal development;
Many doctors believe that drinking 1~2 cups of coffee, tea or carbonated drinks every day will not affect the fetus. But for the sake of caution, it is best for pregnant women to ban it. Caffeine can lead to an increase in abortion rate, so you should drink decaffeinated drinks;
Children should not drink coffee. Caffeine can excite children's central nervous system, interfere with children's memory and cause ADHD.
Strong tea, coffee and carbonated drinks are also risk factors for the formation of digestive tract ulcer; Therefore, patients with stomach diseases should not drink more coffee;
Coffee drinks contain caffeine, so it is easy to cause tinnitus;
Coffee should not be eaten with ibuprofen. Ibuprofen, a commonly used antipyretic, analgesic and anti-inflammatory drug, can stimulate gastric mucosa, while some caffeine in coffee and cola can also stimulate gastric mucosa and promote gastric acid secretion. If you drink coffee and cola immediately after taking ibuprofen, it will aggravate the irritation to gastric mucosa.
It is not advisable to smoke immediately after drinking coffee. Some ingredients in coffee combine with cigarettes to produce carcinogens.
Coffee Baidu encyclopedia