What happens when you leave the fan turning at bedtime?

In order to survive the hot summer, it is necessary not only to use the instruments of civilization such as air conditioner but also to utilize various ideas . On such a summer night, to relieve sleepiness, I sometimes turn my fan at bedtime, but this is pointed out by sleeping experts that this is bad for your health.

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A fan is a device that can "cool a warm room at low cost". Although it can not keep the indoor cold as air conditioner, depending on the ingenuity it can keep the room temperature much lower than just turning. In that method, first prepare 4 to 6 plastic bottles and add 2 to 3 teaspoons of salt into it. Then freeze it in a freezer and place a plastic bottle frozen at bedtime on the tray. By placing this tray in front of the electric fan, you will be able to take a cold wind at bedtime.

However, sleeping expert Mr. Mark Reddy points out that keeping the fan constantly turning at bedtime will not be beneficial for human health for various reasons.

If you use a fan, the air in the room circulates. Then, because dust and pollen are scattered, people who have allergies and asthma, and even those who tend to be hay fever, may have seizures or worsen each symptom. In addition, if dust accumulates on the feather portion of the fan, small dust will flow along with the air, which may cause allergic reactions, Mr. Redyck said.

Furthermore, if you are using a fan at bedtime, you will be blowing air constantly on your body. This will dry your skin, so it is recommended to use lotion or moisturizing liquid when going to bed. In addition, some people sleep with their eyes open, so there is concern that the eyes may dry out by fan blowing. Mr. Reddy pointed out that if you go to bed with your contact lens and continue to send winds to the open eyes, it will be a big problem. In the case of a person who sleeps with a mouth open, there is a possibility that air blowing by a fan will dry mouth and throat, leading to a cold and the like.

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Besides, since the flow of air by the fan is constant, there is a problem that the nasal cavity becomes easy to dry. When drying is extreme, excessive mucus is formed, and symptoms of sinusitis, such as stuffy nose and pain, may occur.

If you are sleeping by directly blowing wind from a fan, your muscles may sore and awake. This is because condensed cold air may cause muscle tension / cramping, so it seems that these symptoms can be seen near the face and neck. If you get up in the morning and the muscles of your neck are stiff, this may be caused by winds from the fan, Mr. Redyck said.

However, research has also shown that using a fan plays a role in preventing sudden infant death syndrome (SIDS). Because the main cause of SIDS is rising temperature and carbon dioxide level, circulation of indoor air using a fan makes it possible to lower air temperature and carbon dioxide concentration, which leads to prevention of SIDS is.

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Sleep expert Mr. Riddick points out "people with allergies and asthma" as "people who should not use electric fans at bedtime". In addition, there are cases where pollens and the like accumulate excessively in the body when the skin, nasal cavity, etc. are dried, so it seems that people who are familiar with such symptoms need to review about the use of electric fans.

Even so, the fan is "the most cost-effective equipment" to improve the quality of sleep in the hot summer, Mr. Redyck said, and encourages him to use the swinging function and the timer function for proper use I will.

in Note, Posted by logu_ii