Dog days are the traditional high temperature period in China, especially in July of the lunar calendar. During this period, high temperature and high humidity are prone to health problems such as heatstroke and heatstroke. Therefore, many people will use the dog days to keep fit and improve their body's resistance and immunity. However, there are some misunderstandings in some health preservation methods, which may have a negative impact on health. Here are some common health misconceptions:

First of all, I mistakenly thought that drinking more cold drinks could cool down. Many people like to drink cold drinks in dog days to relieve the discomfort caused by high temperature. But in fact, drinking more cold drinks will make the blood vessels in the body contract, and the body needs to sweat through sweat glands to regulate body temperature in hot days. Therefore, drinking more cold drinks will affect the heat dissipation effect of the body, but it is easy to cause heatstroke.

Secondly, it is wrong to think that overeating fruits can supplement water and nutrition. Although fruit is rich in vitamins and fiber, water and nutrition cannot be completely supplemented by fruit. In high temperature environment, human body is easy to dehydrate, so it is very important to replenish water in time. However, the proportion of water in fruit is low, which can not effectively meet the needs of the body.

In addition, I mistakenly think that dog days are suitable for sports. The high temperature in dog days can easily lead to excessive sweating and physical decline. Therefore, if you exercise too much in a high temperature environment, you can't replenish the lost water and electrolyte in time, which will easily lead to heatstroke and dehydration. Therefore, it is necessary to choose a moderate exercise mode in dog days to avoid exercising in a high temperature environment for a long time.

In addition, I mistakenly think that I need to drink more herbal tea in dog days. In summer, many people choose to drink herbal tea to cool off the heat. However, there are many herbal ingredients in herbal tea, such as Siraitia grosvenorii and mint, which have certain irritating and pharmacological effects. Drinking too much herbal tea can easily lead to gastrointestinal discomfort and drug allergy.

Finally, I mistakenly thought that I could eat spicy food to stimulate my appetite in dog days. Although spicy food can promote appetite and increase taste, excessive consumption of spicy food can easily lead to gastrointestinal discomfort and digestive problems. In the high temperature environment, the digestive function of the body itself has declined. Excessive consumption of spicy food will increase the burden on the stomach, and may lead to gastritis, gastric ulcer and other problems.

To sum up, although dog days are the golden period of health preservation, there are still some misunderstandings about health preservation. Drinking more cold drinks, overeating fruits, exercising excessively, drinking more herbal tea and eating spicy food are all some health misunderstandings. In order to protect our health better, we should choose proper diet and exercise, and pay attention to replenish water and electrolyte in time. In addition, in high temperature environment, overwork and long-term exposure should be avoided to avoid heatstroke and dehydration. Most importantly, health care should be adjusted according to the individual's physical condition and actual situation. If you don't feel well, you should seek medical advice in time. Only scientific and reasonable health preservation can really improve the body's resistance and immunity.