What's something weird and mostly useless that you can do with your body?

Interstellar_1@lemmy.blahaj.zone to Ask Lemmy@lemmy.world – 134 points –
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I can do this. If I'm in a really quiet area, I like to take in a deeper breath and then exhale as slowly as possible while doing it, which then allows me to hear my heartbeat. Super nifty.

I can also use my soft pallet to block airflow from my throat to my nose. Can you do that too?

I can't block my nose in that way. I tried when your comment came in, but I can't conceive of how to do it.

With the ear popping thing, I just hear the rushing of my breath. I can see how you might be able to hear your heart. I might be making this up in my head, but I feel like maybe I could hear it when I was younger.

The trick is that while you hold your ears 'open', you have your lungs try to not breath out but you don't close your mouth. This lets the heart beating against your lungs be what pushes air in and out and then you hear the sounds of the air pulses as it moves past your eustachian tubes in your throat. Making sure your lungs are as full as possible is required so the lungs push against the heart.