Dumb, quick question
Feb 25, 2010
Why do we make faces, grit our teeth, and sometimes growl when we're trying to break loose a frozen bolt or lift a heavy weight?
I've experimented with keeping a straight face, and I don't seem any weaker for the lack of expression. But it "feels" better to scrunch my face, grit my teeth and sometimes growl a bit while I'm twisting, hoisting or prying.
Any grimaces, growls, howls or facial expressions related to slipped wrenches, busted knuckles, or strained back muscles are self-explanatory. But I'd like an explanation for why I make a gargoyle face even when no pain is involved.