What is a healthy tour starting from the road?

Traveling with friends and relatives during holidays is a pleasure. However, I also want to remind you that healthy tourism begins on the road. Keep the air in the car fresh: there are many people in the car and there are many metabolites in the human body. Among them, carbon dioxide emissions are the most. When the concentration of carbon dioxide in the air reaches 0.5%, people will feel headache, dizziness and other discomfort. In addition, the carbon monoxide produced by the car engine and some people smoking in the car have reduced the air quality in the compartment. Therefore, it is necessary to properly open the window, ventilate and breathe, and the air in the carriage is fresh to ensure people's health. Prevention of traveler's edema: swelling of the lower limbs may occur after a long ride in the car, which is medically called traveler's edema. So don't sit all the time when riding, change your posture often, or stand for a while or sit with your lower limbs raised for a while. You can also massage the lower limbs from top to bottom to help blood flow back. Prevention of carsickness: In order to prevent carsickness, you can take Cheng Yunning half an hour before driving. In order to minimize the head movement during the journey, you can lean your head on the back of the chair and close your eyes to avoid looking at the moving scenery outside the window. In case of general fatigue, headache, dizziness, nausea, vomiting, cold sweat, pale face and other symptoms, you should close your eyes and lie on your back to keep quiet. You can apply a cold towel to your forehead, or sit by the window to keep the air fresh and ventilated. Beware of infectious diseases: the carriage is a public place. Among passengers, flu patients can spread bacteria or viruses to others by talking, sneezing and coughing. In addition, it has been reported that HBsAg is positive in the handlebars, armrests and windows of automobiles. Medical research has proved that HBsAg exists in saliva and sweat of anti-positive people in Australia. There are many people in the carriage and the pollution is serious. In addition, some passengers spit everywhere, which increases the chance of infectious diseases.