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  • Can you do that thing where you flex some internal muscle and hear a loud rumbling that I assume is rushing blood? It’s hard to explain. I think the muscle is related to the jaw, or maybe ear movement. It’s not externally perceivable, but it’s useful on an airplane.

    • Is that something like swallow or gently blow through the nose with closing your nose? This is what I’m suppose to do to release pressure on my eardrum, but I have no idea what you mean.

      • Those things pop your ears, yeah, but they’re not what I mean, and they don’t make the noise. Oh well.