Along with wrinkles, worse hangovers, and balding, another joy that comes with getting older is nose hair. But if you want to keep your nose looking neat, here’s quick word of warning.

A video from Business Insider has some advice from Dr Erich Voigt, an expert in the field of otolaryngology (that’s a fancy word for the study of diseases affecting the ear, nose, and throat). He explains how plucking or trimming your nose hairs too short can lead to some fairly daunting side effects in the “danger triangle” of your face. Due to the channels of blood supply from the corners of the mouth to the bridge of the nose, plucking those nasal hairs can let some unwanted intruders into your nasal cavity, sinuses, and even your brain.

Check out the video below and start sporting those nose hairs with pride.

EDIT: We are having issues with the embed, so please check out the video here.