The constant stream of air also has a tendency to dry out your nasal passages, which could affect your sinuses.
The experts explain: “If the dryness is particularly extreme, it can result in your body producing excess mucus to try to compensate.
“Then, you’re more susceptible to blockage, stuffiness, and sinus headaches.”
Using a fan all night could potentially cause a sore throat.
The site reads: “The constant stream of air might dry out your throat, especially if you sleep with your mouth open. The air also dries out nasal passages.
“One way to minimise this risk is to use a fan that rotates rather than one that blows a steady and unrelenting flow in one concentrated area all night.”