lil brown bat

Actually, by the point you have heatstroke, you're probably not going to be self-treating, but are in for a fast trip to the hospital. Dehydration -> heat exhaustion -> heat stroke, that's the progression, and of course the key is to become more skilled at detecting heat-related symptoms early and become better at prevention. Hydration is key to prevention, but one other tip that the article mentions (and that frequently gets overlooked) is getting acclimated to heat: the more time you spend in the heat under non-exercise conditions, the better you will be able to handle the heat when you exercise. On the other hand, if your house is air-conditioned and your car is air-conditioned and your workplace is air-conditioned, the heat is going to hit you a lot harder. Think about adjusting the thermostat or cutting out the A/C altogether -- humans can survive pretty warm temperatures.