Why do we grunt more as we get older?

dougkelsey:

We’ve all had something like this happen. You drop something on the floor. Something small, insignificant. Like a pen.

So you bend down to pick it up and as you return to upright, a primal, monosyllabic utterance slips out of your mouth.

You grunt.

Now, picking up something heavy like a tractor tire, well, yeah, you would expect a bit of grunting. But a pen? What’s going on?

Those of us “of a certain age”, will read the title of this and think, “YES! Why is that!?” The answer is more interesting than it has any right to be. Thanks to Daniel Jalkut for the link.