[smabie]

Seems really interesteling, I'll have to try it sometime. But does hyper ventilating really make you pass out after a couple minutes? I guess I've never tried, but it sounds counterintuitive.

I'm sure there was fun to be had doing this study!

[14]

The answer is yes. Just try blowing up an air mattress at the beach. Soon you will feel tingly and need to take a break. Or possible use this device and blow like a champion come beach days