LEXINGTON, Ky. (FOX 56) — High school athletes are back on the field preparing for the upcoming season, but experts warn that rising temperatures and humidity can create dangerous conditions during practices. Combined with high temperatures and humidity outdoors, that can increase the risk of heat-related illness, experts say. "They really need 1 to 2 weeks of climate of being outdoors, in the heat of really getting ready to be in this type of temperatures and this humidity," Stanton said. AdvertisementAdvertisement AdvertisementLATEST KENTUCKY NEWS:Football players face an especially high risk, with linemen accounting for the vast majority of heat-related illnesses among football players, Smitley said. Stanton said athletes should not be pushed to continue practicing when they are showing signs of heat illness.