Drink something hot to cool down.
What?!
Conventional wisdom may tell you that if you are hot, drinking something cold will cool down your body. However, research has shown that on a hot day, drinking a hot beverage may help your body stay cool. The reason being that when you drink a hot drink, your body produces sweat to cool down your body temperature. Initially you may be adding heat by drinking the hot liquid, but the amount of sweat that your body produces to cool down more than makes up for the added heat from the liquid. The increased perspiration is key; when the sweat evaporates from your skin, it is able to cool down your body temperature.
Another theory is that when your blood vessels dilate to bring the heat to the surface of your skin (in an effort to cool down), it will cool your core temperature (since heat is being lifted to to the surface of our skin).
