When I head out into the hot weather to work out, I discovered an easy trick for staying cool. It works so well that I do it before heading out for a run, bike ride, or hike. I simply stand over the sink and drench my hair with water. When it's completely soaked and dripping, I wrap it in a bun. As I run, the breeze on my wet head keeps me cool. It is quite a pleasant sensation. Try it the next time you head out in the heat.