The article discusses the conditions under which fans should be turned off to avoid overheating the body. It explains that while fans typically aid cooling by promoting sweat evaporation, they can sometimes have the opposite effect depending on temperature, humidity, and individual physiology. The article references conflicting guidelines, some suggesting fans should be turned off above 35°C, others citing WHO recommendations at 40°C, and highlights research indicating that humidity plays a critical role. Scientists using a biophysical model calculated specific combinations of temperature and humidity where fans either cool or heat the body. The piece emphasizes that the decision depends on multiple factors beyond just air temperature.
Bias read (Center): The article presents scientific findings without overt ideological slant, balancing different perspectives on fan usage. While it mentions conflicting guidelines, it does not favor one side over another. The focus remains on empirical data and expert analysis rather than advocacy for any particular政





