10 Grossest Things in Your Body Right Now

Eyelash Mites
No need to call the exterminator. These mites are commonplace and mostly harmless. © Ed Reschke/Photolibrary/Getty Images

There are mites living in your eyelashes; and the older you are and the more oily your skin, the more likely that statement is true. It's estimated that mites, specifically Demodex mites (D. folliculorum, to be exact), have colonized the eyelashes of more than 80 percent of people over the age of 60 [source: American College of Allergy, Asthma & Immunology].

Demodex mites are face mites, and if you could see them with the naked eye you'd see them living at the root of your eyelash and hair follicles -- in fact, it wouldn't be surprising to find as many as 25 mites living a single eyelash follicle [source: Roque]. While there's no denying that discovering these follicle squatters is alarming, they're mostly harmless, only causing allergic reactions in sensitive individuals.