During a heatwave, our body temperature rises. The strong heat completely numbs us, and the sunstroke, like heat stroke, dehydration, headaches, and cramps, is never far away. The sweating is also becoming more and more unbearable as the ambient temperature increases. We then adopt the right actions: regularly drink a good glass of cold water to hydrate, keep the shutters, blinds and curtains closed during the day, wear loose and light clothing, avoid going out during the hottest hours, especially to perform physical activity, etc. Nevertheless, the outside temperature remains very unpleasant. Here are some little-known tips to cool you down quickly and well when nothing helps. What less suffer from the scorching heat when you do not have an air conditioner!