Sound funny? Two things: posture and breath.
A closed posture, shoulders rounded in, signals danger to the brain and turns on the limbic brain (that’s the lizard-y one). An open posture, with collarbones wide, tells the brain to relax and go with higher reasoning from the prefrontal cortex.
No surprise: you handle stress way differently from those two places!
Lengthened collarbones also allow the breath to deepen: another way to trigger the higher brain!