Nowadays, young people are increasingly fond of tea and have even formed a unique tea culture.
Not only that, but an expert from SaintNoon also believes that tea is not only a drink to quench thirst, but also a powerful medicine for health.
Modern medicine also found that tea contains tea polyphenols, tea pigments, tea polysaccharides, and other beneficial components of the human body, with cancer prevention, antioxidant, anti-aging, reduced three high, weight loss, anti-bacterial, enhanced immune function, and other effects.
However, even though the benefits of drinking tea are to drink at the right time, otherwise it will do harm to your body!
Following are 4 occasions when you should not drink tea.
1. When fasting
During fasting, the stomach is usually empty. If you drink tea at this time, tea will be in direct contact with the stomach.
On the one hand, it will inhibit the secretion of gastric juice, affecting the subsequent digestion of food.
On the other hand, the body will absorb too much caffeine in tea, causing palpitations, headaches, stomach discomfort, heartburn, and other "tea-drunk" phenomena.
2. Before and half an hour after meals
Half an hour before a meal, if the abdomen is empty, there is no food buffer in the stomach, and the consequences of drinking tea on an empty stomach are similar. That is, tea quickly stimulates the stomach, the phenomenon of "tea drunk.
As for drinking tea after meals, which is typical for most people, especially after eating greasy food, many people are used to drinking some tea to relieve greasiness and eliminate food.
But the fact is that drinking tea immediately after a meal:
①Tannic acid in tea will combine with the protein in the stomach that did not have time to digest, forming indigestible coagulated material, which will then affect the digestion and absorption of protein.
②The tea will stretch the stomach, weakening the peristaltic function of the stomach and affecting food digestion.
③ If you drink too much tea, you will also invariably dilute the gastric juice, reducing the concentration of gastric acid and affecting the body's digestive function.
Tips: 2 hours after the meal and then drinking tea not only does not affect the absorption of nutrients but also helps to accelerate the gastric emptying rate.
3. 1 hour before bedtime
Tea contains caffeine, which will make people excited. Drinking before bed is not conducive to sleep.
In addition, the diuretic effect of caffeine will also increase the frequency of getting up at night.
Therefore, it is generally recommended that you refrain from drinking tea at least one hour before bedtime. If you are very sensitive to caffeine, you should bring the time of drinking tea forward again.
Note: Do not drink milk tea or coffee before bedtime either.
4. After drinking, especially after getting drunk
Many people like to drink strong tea after drinking to relieve alcohol, but this is simply a big mistake!
Drinking tea after drinking, especially after drunkenness, will lead to adverse consequences.
① Hurt the stomach
Alcohol already hurts the stomach, and the caffeine in tea and tea polyphenols stimulate the stomach, damaging the mucosa.
② Injury to the kidneys
After drinking alcohol, the ethanol in alcohol enters the blood through the gastrointestinal tract. It is converted into acetaldehyde in the liver, then into acetic acid, decomposed into carbon dioxide and water, and discharged.
After drinking tea, theophylline in tea has a diuretic effect. On the surface, the diuretic effect can make acetaldehyde out of the body faster.
But in fact, acetaldehyde is harmful to the kidneys. The diuretic effect promotes the premature entry of acetaldehyde into the kidneys, affecting kidney function. Often, drinking tea after drinking is likely to cause kidney dysfunction.
③ Hurt the heart
Alcohol in ethanol, cardiovascular stimulation is considerable, and tea also has a stimulating effect on the heart. The two combined, more increase the motivation of the heart.