Every Q-tips box has a warning label: “Do not insert swab into ear canal,” and if you’re going to use it to clean your ears, gently swab the outer part only. But extracting wax from our ear canals is ...

That little dent in the middle of your stomach isn’t just a quirky reminder of your time in the womb, it’s potentially one of the most bacteria-packed spots on your entire body. Your belly button is ...