 So we have a mantra, stay cool, stay hydrated, know the symptoms. So staying cool could mean anything from using a fan, and fans can be remarkably effective. We know that if things are getting super hot, they can be counterproductive. We generally suggest that fan use is helpful well into the 90s. But above that, you can run into situations where heat, like a convection oven, the fan can actually increase heat absorption into the body. But fans are really good.