this post was submitted on 05 Dec 2023
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[–] emergencyfood@sh.itjust.works 5 points 11 months ago (1 children)

Under normal conditions, your body will make you start breathing before your oxygen levels go that low.

[–] QuinceDaPence@kbin.social 4 points 11 months ago* (last edited 11 months ago) (1 children)

Also if you can overcome the urge, you'll successfully hold it a lot longer than you think you could without passing out. Especially if under water. The record is 24 minutes and 37 seconds.

Though to go that long you have to minimise the amount of energy your body is using even down to your thoughts so your brain uses less.

[–] 1847953620@lemmy.world 1 points 11 months ago (1 children)
[–] QuinceDaPence@kbin.social 3 points 11 months ago* (last edited 11 months ago) (1 children)

There's a recent Veritasium video on it. The water helps because of the Mammalian Dive Reflex. The guy he's doing the video with says basically getting over that first instinct to breathe is the worst and then after that your body makes more adjustments and quits complaining as much.

[–] Piemanding@sh.itjust.works 2 points 11 months ago

Then it starts feeling good and that's when you worry.