[Unofficial] 2x2 - 4x4 UNDERWATER Relay by Kevin Hays

[rock1313]

No I also enjoyed that. Seriously though, how people hold their breath for a minute plus. Crazy.

I've held my breath for 3 mins once by hyperventilating a lot before holding my breath.

 

[uberCuber]

I've held my breath for 3 mins once by hyperventilating a lot before holding my breath.

That sounds healthy

 

[newtonbase]

The world record is 11:35 (or 22:32 after breathing pure oxygen) per Wikipedia.

 

[brian724080]

The world record is 11:35 (or 22:32 after breathing pure oxygen) per Wikipedia.

Wow, but breathing pure oxygen is harmful?

 

[kcl]

That sounds healthy

Hyperventilating doesn't hurt you provided you don't do it to the point where you pass out. It floods your system with oxygen, which is a good thing when you're trying to do things such as breath holding.

 

[CDcuber]

"Where's my 4x4? is this it. No I just solved that. Ah here it is."
Am I the only one who found that part hysterical?

haha I noticed that also!