Recent guidance suggests that electric fans are helpful during heatwaves. According to these guides, fans help cool the body in air temperatures up to 40°C due to their promotion of sweat evaporation. But a research group says that may not be the case.

Guest: Dr. Robert Meade, Postdoctoral Fellow at the Human and Environmental Physiology Research Unit at the University of Ottawa

Learn more about your ad choices. Visit megaphone.fm/adchoices