Jake/Quaritch Drowning (But Not Dying)

I tried searching this on the sub and didn't find anything, so forgive me if it's been asked already...but how in the world is Jake still alive after drowning (?)

I can get Quaritch's Avatar surviving, I suppose, since he'd lose neural link as soon as the Avatar body passed out and therefore it might go into an almost hibernation type state or something...but Jake??

He was literally underwater for a good couple minutes, am I just stupid and people can normally survive being underwater unconscious for minutes? Or...? 😂