I've realized that when sleeping on the left side, the left nostril is plugged and the other isn't. When having a cold and a stuffy nose, why is it that one side
![TIL that in humans, the nasal cycle means that during the course of a day, the nostrils will switch over approximately every four hours or so. : r/todayilearned TIL that in humans, the nasal cycle means that during the course of a day, the nostrils will switch over approximately every four hours or so. : r/todayilearned](https://external-preview.redd.it/7HYNU8pVL-fKDJFyvYfscopUlHw7qHJ_rjWM71qslvs.jpg?width=640&crop=smart&auto=webp&s=afc7cd90a894e5ef73f0cbd54474d04b96611eda)
TIL that in humans, the nasal cycle means that during the course of a day, the nostrils will switch over approximately every four hours or so. : r/todayilearned
One side of my nose is always blocked. When it's not one side, it's the other. Why does it stop and go to the other side? Why can't neither nostril be blocked? -
Why is one side of my nose clogged and changes when I lay down on the other side? No mucus and I can't seem to force my breath through it. - Quora
![Why is it that when I'm sick, one of my nostrils can become completely congested to the point where I can't breathe out of it, but the other one always stays breathable? - Why is it that when I'm sick, one of my nostrils can become completely congested to the point where I can't breathe out of it, but the other one always stays breathable? -](https://qph.cf2.quoracdn.net/main-qimg-5f50553f6c6556632bb5f882bc8b335b.webp)