Heat stroke is certainly no laughing matter. Each summer, a heat wave rolls over Australia, precipitating a rash of death and hospitalisations related to heat stroke. As much of the nation braces for a heat wave, it is important to consider how to prevent this deadly condition. Heat stroke is when a person’s core body temperature rises too high, often more than 40 C, because high environmental temperature, typically over 32 C and humidity over 70% prevents the body from cooling through its normal means of sweating and breathing. As heat stroke develops, our heart beats fast, our lungs breathe fast, we feel dizzy and nauseated. Our muscles cramp, and…