However, Chinese medicine health care experts believe that in summer, the body's yang is outside and yin is inside, the secretion of gastric juice is relatively reduced, and the digestive function is low, so it is forbidden to eat cold drinks. If excessive, it will cause diseases, make people feel bloated and uncomfortable, and lead to abdominal pain and diarrhea. Therefore, the folk proverb says: "Although the weather is hot, don't be greedy for cold;" Although melons and fruits are beautiful, you can't eat more. "This is also a summary of people's long-term life experience. In addition, don't drink too many cold drinks after sweating, because drinking too many cold drinks can not only supplement and adjust the loss of salt and water in the body as soon as possible, but also dilute the gastric juice and reduce its bactericidal power, so that pathogenic microorganisms can pass through the gastrointestinal tract, causing gastritis, enteritis, dysentery and other diseases, especially some patients with chronic diseases. For example, patients with coronary heart disease, asthma and chronic bronchitis should not eat more frozen food, so as not to aggravate their illness or induce the recurrence of old diseases. Patients with gastric ulcer and hyperacidity should not use sour cold drinks; Diabetic patients should add little or no sugar to their homemade cold drinks, otherwise they will feel sweet and greasy in their mouths or upset in their stomachs.
It should also be noted that drinking drinks cannot replace drinking water. Because most drinks contain a certain amount of sugar, the higher the sugar in the drink, the higher the osmotic pressure, and the less easily it is absorbed by cells, but it will take away the water in the cells and easily cause water loss in the body.
In addition, cold drinks are often difficult to quench thirst, leading to frequent overeating, which is a strong cold stimulus to the digestive tract, causing abnormal peristalsis and dysfunction of the digestive tract, leading to abdominal pain and diarrhea.
There are many kinds of drinks in summer, including solid drinks, soup drinks, fruit juice drinks, fortified drinks and alcoholic drinks. Such as hawthorn crystal, pineapple crystal, sour plum powder, orange powder and so on. They all have the function of relieving summer heat and quenching thirst, and they are convenient to drink, so you can choose to use them according to your own hobbies. Alcoholic beverages, such as beer, small champagne, sparkling wine, etc. , containing a small amount of alcohol, has the effects of relieving summer heat, quenching thirst, relaxing muscles and tendons, promoting blood circulation, stimulating appetite and refreshing the brain. Moderate drinking can excite the central nervous system and reduce fatigue. Fruit drinks, such as strawberry juice, Rosa roxburghii juice and kiwi fruit juice. They are all sweet and sour, cold and nutritious. They are not only moderately sweet and sour, but also fragrant and delicious, and have the functions of invigorating the stomach, promoting digestion, nourishing and strengthening, so they can be chosen to drink.
Although cold drinks are very comfortable to drink, they also have a certain effect of relieving summer heat, but in general, tea has a better effect of relieving summer heat. Hot tea is an ideal soft drink in summer. The researchers measured the skin temperature of two groups of people who drank hot tea and drinks on hot days. The results show that warm tea can reduce the skin temperature 1℃ ~ 2℃, while cold drink can only cool the mouth. People who drink tea and water feel cool and comfortable, and their thirst disappears completely, while those who drink cold drinks feel depressed and thirsty. The temperature of warm tea is similar to that of warm tea, and water molecules can enter the intestinal wall more quickly and neatly, so it can quench thirst.