Edit: I’ve gotten comments asking if it’s true – I assure you it is and there have been posts in the past about it, but none of recent that I could find. I do this while brushing my teeth so I can get the back of my tongue where bad breath comes from.
In: Biology
Find scientific evidence that this works here.
This doesn’t explain it, however.
https://www.google.com/amp/s/lifehacker.com/turn-off-your-gag-reflex-by-squeezing-your-left-thumb-5858128/amp
Edit. The link on that page was broken
https://pubmed.ncbi.nlm.nih.gov/18832272/
The study targets a pressure point. It’s long been known that applying pressure to some nerves can affect your physiology, although I don’t know it is well understood.
I’m trying to imagine exactly where this point of.
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