That fans contribute to hypothermia, or abnormally low body temperature.[1] As the metabolism slows down at night, one becomes more sensitive to temperature,[citation needed] and thus supposedly more prone to hypothermia. If the fan is left on all night in a sealed and enclosed room, believers in fan death suppose that it will lower the temperature of the room to the point that it can cause hypothermia. Empirical measurements will show, however, that the temperature in the room does not fall, at least not due to the fan; if at all, it should rise slightly because of friction and the heat output of the fan motor, but even this is generally not significant. Fans actually make one cooler by increasing the convection around a person's body so that heat flows from them to the air more easily, and by the latent heat of vaporisation as perspiration evaporates from the body. However, there is no scientific study which indicates that this effect would be sufficient to cause hypothermia unless the temperature were already very low (in which case, there would be no need for a fan anyway).
[/quote]Originally posted by: Xanis
http://en.wikipedia.org/wiki/Fan_death
Originally posted by: Xanis
http://en.wikipedia.org/wiki/Fan_death
That fans contribute to hypothermia, or abnormally low body temperature.[1] As the metabolism slows down at night, one becomes more sensitive to temperature,[citation needed] and thus supposedly more prone to hypothermia. If the fan is left on all night in a sealed and enclosed room, believers in fan death suppose that it will lower the temperature of the room to the point that it can cause hypothermia. Empirical measurements will show, however, that the temperature in the room does not fall, at least not due to the fan; if at all, it should rise slightly because of friction and the heat output of the fan motor, but even this is generally not significant. Fans actually make one cooler by increasing the convection around a person's body so that heat flows from them to the air more easily, and by the latent heat of vaporisation as perspiration evaporates from the body. However, there is no scientific study which indicates that this effect would be sufficient to cause hypothermia unless the temperature were already very low (in which case, there would be no need for a fan anyway).
Originally posted by: ICRS
They say it drops your body temperature and makes you very sick, and can even kill you from hypothermia. I know the kill part is bullshit, but can it really make you very sick?
Originally posted by: Throckmorton
Yes you can. Being cold CAN make you sick, because there are always bacteria at the back of your throat. If the temperature there drops a few degrees, your immune system is less effective
Originally posted by: Shawn
LOL. I sleep with my fan on every night.
Originally posted by: slpaulson
I always sleep with a fan on me, and I haven't been sick other than food poisoning or mild colds in several years.