Folk customs in the cold winter
In terms of clothes, in the cold December, most people often wear too much, especially children. When the weather is a little cold, adults will wrap them tightly for fear of freezing them. But I don't know that wearing too thick clothes has at least three disadvantages: First, wearing too thick clothes in not very cold weather is easy to make the air layer inside the clothes form a microclimate with high temperature and high humidity, and the human body's resistance to heat dissipation and moisture dissipation increases, which affects the adjustment of heat balance; When the thickness of air layer inside clothes exceeds 15 mm, air convection increases, heat loss increases and warmth retention decreases. Second, wearing thick clothes too early will inhibit the body temperature regulation function, weaken the cold resistance, and easily catch a cold. Third, in the cold winter, wearing too many clothes makes you bloated, inconvenient to move, and consumes more physical strength; Children are overwhelmed by clothes, which hinders their physical activities and affects their physical development. But some people who love beauty "only seek elegance, not temperature", which is also undesirable. Therefore, in cold winter, we should pay attention to keep warm. "Cold starts from the feet", so it is particularly important to keep people's feet warm. When the elderly go out, it is best to put on cotton shoes, towels and socks, and wear hats and scarves to prevent their feet and heads from catching cold.
In terms of diet, because the digestive function of human body is active in cold winter, gastric juice secretion increases, acidity increases, and food intake increases, so people can appropriately increase calories in their diet, and protein's intake is the same as usual, while ensuring the supply of vitamins, especially vitamin C. I remember an article called "Revealing five foods that must be eaten in cold winter", which is very reasonable. These five foods are perch, auricularia auricula, soybean, mushroom and soybean sprouts, which have the functions of invigorating spleen and kidney, improving intelligence and generating blood, and are beneficial to people's cold protection. In addition, the winter climate is relatively dry, so we should pay attention to hydrating and drinking more water to be healthy.
In terms of housing, getting up on time, sleeping on time and stabilizing mood are the three major factors to improve the body's own immunity. Winter is the high incidence period of respiratory infectious diseases. In order to prevent bacteria and viruses from taking advantage of it, the indoor air should be kept open. When the weather is good, try to open the doors and windows to let the sun shine directly indoors; Indoor temperature should be kept at 15-20℃, not too high or too low. Many working heads stay indoors for a long time, which is prone to dizziness, nausea and loss of appetite. Therefore, it is suggested that after working for a period of time, they should not only keep the air fresh, but also have proper buffering and rest.
In practice, special attention should be paid to public places where few people gather, because this is often the source of the disease. Only by staying away from the source of infection will the chances of getting sick be small. When traveling by bus, try to open the window for ventilation to keep the air in the car fresh, which is beneficial to health. When exercising in cold winter, be sure to warm up and keep warm after sweating to avoid catching a cold and getting sick.