Public Health England has said fans “can cause excess dehydration” and so should not be pointed directly at your body.
Running the fan pointed at you all night could see you wake up with a dry throat, stuffy nose and even dry out your skin.
Fans can also pick up dust and mites and blow these towards you, contributing to irritated nose and eyes when you wake.
Instead, there are a couple of tricks you can use to cool down a room without needing the fan to run for eight hours.
This post originally posted here Daily Express :: Life and Style