I had an idea pop into my head during lunch. Why do people grunt? Like when lifting heavy objects or pushing kids down stairs, why do people make grunting noises?
Because it feels good. Except for when you push kids downstairs. Then it's the sound of your soul laughing.
I always thought it had something to do with declension of muscles or something and it was actually healthy to do it while working out and stuff. But that might be a big, big lie.
well, when lifting you're SUPPOSED to be exhaling for part of the motion and inhaling for part of the motion. the grunt is kind of like an abbreviated exhale.