Just for perspective: I am a man in my mid-40s and for as long as i can remember i had this question... is it normal that i can shut my nose close just with some muscles?

I always wondered why some people hold their nose shut with their fingers while jumping into a pool or when exposed to some horrible smell... i never had this need. Changing my sons diapers? No problem! Cleaning the latrines while in the army? Just a breeze!

Ehm... yeah... just thought about this...

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[–] 8 points 1 year ago (1 child)

How else do people blow out birthday candles, and blow up balloons? The air could just escape through the nose!

I think with diving and other situations is to prevent the exposure of the inside of the nose. Especially when jumping in the water and and pressure can be much higher.

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