Five misunderstandings in turning on the electric fan:
1, long-term blowing
Many people like to blow electric fans for a long time. They will stop when they feel cold, and they will feel hot. Might as well blow them for a long time. However, if you blow on the electric fan for a long time, the temperature of the human body will drop with the evaporation of a lot of sweat, which may easily cause diseases such as colds, colds, abdominal pain and diarrhea. Generally, it is appropriate to blow for half an hour to 1 hour at a time.
2, high-speed blowing
In order to cool down as soon as possible, some people turn on the electric fan to the highest speed, thinking that a strong wind is enough to reduce the fever. This is an inappropriate practice. When the temperature exceeds 30℃, the air temperature is close to the normal body temperature, and the wind from the electric fan is also high temperature wind. At this time, the body's heat mainly depends on the evaporation of sweat. If the electric fan blows too much, the skin surface temperature drops, the pores are blocked, and the sweat inside the body can't be emitted, you will feel hot, and fatigue, backache and backache will occur at the same time. This is the so-called "sweat suppression". Therefore, it is not suitable to use electric fans for high-grade high-speed blowing, and it should be adjusted to medium or low speed, and it is better to blow breeze.
Step 3 blow with the wind
Don't put the electric fan near your body. If a strong wind blows nearby and only blows on one side of the body, the skin sweat on the windy side will evaporate rapidly and the temperature will drop obviously, while the sweat on the windless side will evaporate slowly, resulting in a large gap between blood circulation and sweat excretion on both sides of the body, and the nerve center will lose balance. Once the time is too long, all organs will be exhausted and feel unwell. Therefore, when blowing an electric fan, it is best to keep a distance of 2 meters from people, so that the wind blown out is even and soft.
4. Most electric fans blowing directional wind are rocking fans. When blowing, the electric fan constantly moves its position and direction, and the blowing becomes bigger and smaller, so that the body surface is slowly exposed to the wind, so that people will not feel too cold and feel the whole body temperature is uniform. Therefore, it is best to use a rocking fan instead of blowing directional wind.
Step 5 sleep and blow the wind
That is, use an electric fan to cool down and sleep. When people are asleep, the functions of various organs of the body are reduced to the lowest level, all reflexes disappear, and immunity is reduced, which is easy to cause diseases.