I once held my breath for 5 minutes when I was 14, sitting in class. I suppose it’s possible I was accidentally breathing through my nose a little as I wasn’t underwater.

Glad I'm not the only one who was bored enough in class to do this.

It was Latin...

My brother did this in his geometry class and passed out. The nurse called my mom and asked if they should send him home to which she responded, “hell, no!”

From my experience, holding your breath in air and in water are totally different things. I guess, because it is difficult to stop any intake of air when you are in air.

¯\_(ツ)_/¯