The researchers found that the fan can help the heat. If you place the fan near the window it will transfer to the room air from outside but the cool air he can't. Well, if the outside temperature is above normal, the flow of hot air will only increase the body temperature.
A person can feel a small breeze, which is created by means of a fan, but circulation in the room hot air starts increased perspiration, which in turn can lead to increased risk for getting heat stroke.
Intense sweating is often caused by dehydration and electrolyte imbalance. This is especially harmful for those who have various heart diseases.
From extreme temperatures is often affects mostly the elderly and children, as they are bad enough to recognize the symptoms of overexposure to heat.