We have all used electric fans, which are especially available in every household during the hot summer. The wind discharged by electric fans can increase the speed of indoor air flow and reduce the indoor temperature, but using electric fans for a long time can also be harmful to the body. Because the wind from an electric fan can lower the temperature of the human skin, it can easily cause colds, strokes and other diseases if blown for a long time. Everyone knows that it is not good to point a fan at your head, so what are the dangers of pointing a fan at your feet? 1. It can cause stroke Place the fan very close to the body and keep it blowing for a long time. In this way, the sweat on the side that is blown by the wind will evaporate quickly and the body surface temperature will drop significantly. On the side that is not blown by the wind, the sweat will evaporate slowly, the skin temperature will be relatively high, and the blood vessels on the surface of the body will still be in a state of dilation, which will eventually lead to an imbalance in the body's blood circulation and an unbalanced sweat excretion. Symptoms such as headache, dizziness, and general discomfort may occur, and in severe cases, a stroke may be induced. 2. The fan should not blow directly Electric fans should not be directed directly at people. If they do, cold wind can easily invade the body, especially when you are weak or sweating profusely. It is best to let the fan blow towards a corner. Children, the elderly, and people with weak bodies should use electric fans less often, because "where evil enters the skin, the qi will be weak", but electric fans can be used to adjust the indoor airflow to indirectly reduce the temperature. When sweating profusely, you should avoid getting close to an electric fan to avoid sweating problems on the body surface, which may lead to circulation disruption and easily cause a stroke. 3. The fan air volume should not be too large The air volume should not be turned on too high when sleeping. When people are sleeping, the body's circulation slows down, and this is when the body is most vulnerable. If the air volume is too high and blows directly at the body, it will cause the body to feel uncomfortable and have symptoms of fatigue, and in severe cases, a stroke may occur. 4. The fan should not be turned on for a long time It is not advisable to turn on the electric fan for a long time. There is an old Chinese saying that goes "Everything will turn into its opposite when it reaches its extreme". If you turn on the electric fan for too long, your body will feel uncomfortable. The human body temperature will drop with the evaporation of sweat. Over time, it is easy to cause symptoms such as colds, abdominal pain, diarrhea, etc. It should be turned on appropriately. It is recommended to turn it on for about 1 hour. 5. The fan should not be used at close range Correct placement is also very important. The electric fan should not be too close to the human body. If it blows too close, the blood circulation and sweat circulation will be greatly affected, and the nerve center will be unbalanced. Once the time is too long, various organs of the human body will feel tired, and the whole body will feel uncomfortable. The best place to place an electric fan is about 2 meters away from the human body, so that the wind is softer and more even. |
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