Researchers at Georgia Tech are developing wearable technology to detect heat injury before it becomes fatal. Atlanta school heat safetyWhat we know:Clayton County Schools declared a code red heat risk Monday, canceling all outdoor classroom activities as temperatures rise across metro Atlanta. "That can lead to either heat exhaustion, heat injury, or heat stroke, which is a continuum of serious heat illnesses, with heat stroke being the most severe," Sawka said. Meanwhile, researchers at Georgia Tech are testing potential life-saving solutions to detect early signs of heat-related illness. "We're doing some stuff at Georgia Tech where we're looking at wearable sensors to predict body fluid requirements using machine learning to predict a head heat exhaustion or heat stroke," Sawka said.