Scientists say using a to help us sleep is for us. This is bad in the current hot . Sleep experts say there are many why using a fan is bad for our . They cause problems for people with . Dust and pollen circulates around the and adds to sleeplessness. Circulating air can dry out and irritate our eyes and . This makes it difficult to sleep. Fans also cool the air and can make our muscles .
Many sleep say fans are not a danger to . One said: "There's nothing about a fan that's . There's nothing wrong with circulating ." If a fan stops us sweating, we will sleep. People should keep fans at a from their bed and not have them blowing at their . Using an air filter in the bedroom can reduce the of dust. A fan may be better than an air . This can cool the on our body and give us a .
