By avoiding movement you save as much oxygen as possible

My cousin did 9 minutes, he was pronounced dead……

I use to go underwater as a kid and see how long I could hold my breath, though sometimes the lifeguard thought I was drowning.

27 seconds is my personal best.

Hyperventilating first helps remove all the carbon dioxide from your blood, therefore increasing holding capacity.

Oxygen production of a plant visible in water.

I did 4:00 in a pool once. My buddies were over 5 min. We had a skinny guy do 6:19 with a slight twitch breaking the surface in competition. Very dangerous by yourself though.

I like how they checked on whether dude was still alive lol.

No one will stay longer than "the pool closed" people! 🤔

you cant breathe if you dont move

3:30. Best I ever did.