pulling nose hairs can be as bad for your brain as it is for your dating life. The danger is that you will break the skin somehow and give root to an infection, which could subsequently migrate inward-into the base of the brain.

Blood from your nose (to be precise, from a triangular region of the face centered on the nose) drains to the rear toward your brain, where it joins various other veins, including the ones that drain blood out of your brain.

If a nasal infection were to travel downstream and block this junction point (a condition known as intracranial thrombophlebitis-say that three times fast), you'd have big problems. Some doctors call it "the triangle of death."