On: Box Breathing

[drc0]

TIL: The longest time breath held voluntarily (male) is 24 min 3.45 secs and was achieved by Aleix Segura Vendrell (Spain).

How is that thing even possible? your body would work in an entirely different manner!

[kerneis → drc0]

He pre-breathes 100% oxygen for up to 30 minutes prior to the breathhold: https://en.wikipedia.org/wiki/Static_apnea#With_pure_oxygen

World record without this trick is 11 min 54.