With two to four million sweat glands on the body of the average person, it's no surprise that your body is designed to sweat. A lot. And while sweating can be unpleasant, we’d get heatstroke without it. Whenever our body temperature rises above our natural 98.6, sweat evaporating off the skin helps cool us down.
Hot weather and intense exercise are the most obvious ways to turn up your body temperature. But there are a lot of basic bodily functions that make you sweat too (even if it isn't as noticeable). Everything produces heat, from your stomach dealing with the aftermath of Taco Tuesday to the whirring of your brain when it's figuring out how to win the March Madness pool. Here are the four key sweat spots to watch out for.