A Scientific Explanation for the Hundreds of Mites That Live on Human Faces

A recent episode of the SciShow series Quick Questions gives a scientific explanation for the hundreds of tiny mites that live on human faces. Host Hank Green explains that two species of demodex mites populate our faces and feed off of the sebum secreted by glands in the skin.

Glen Tickle
Glen Tickle

Amelia's dad. Steph's husband. Writer, comedian, gentleman. Good at juggling, bad at chess.