Many people need a to sleep. Scientists say this could be for us. This is bad for those of us unable to sleep in the hot weather. Sleep experts at the website Sleep Advisor say there are many why the use of a fan is bad for our health. Fans cause problems for people with . They cause dust and pollen to circulate around the and add to an asthmatic's sleeplessness. Circulating air can dry out and irritate your eyes and , which makes it difficult to sleep. Fans also cool the and can make tense up and cramp.
Other sleep experts disagree and say fans are not a to health. A specialist on the system, said: "There's nothing about a fan that's . There's nothing with circulating air." If a fan stops us sweating, it will help us sleep. People should keep fans at a distance from their bed and not have them blowing at their . It is also a good to put an air filter in the bedroom to reduce the of dust. A fan may be better than an air conditioner, which can chill the on our body and cause us to wake up with a .
