The world record for longest underwater breath-hold using oxygen is often viewed as much as a conjuring trick as an athletic feat - and at one time the title
Super crazy. Pre-breathing pure oxygen for upwards of 30 minutes ahead of time. Then laid at the bottom of the pool motionless for just barely over 29 minutes.
Super crazy. Pre-breathing pure oxygen for upwards of 30 minutes ahead of time. Then laid at the bottom of the pool motionless for just barely over 29 minutes.
So many questions.