Kate Winslet held her breath for an impressive 7 minutes and 15 seconds while filming, but the current world record is over 24 minutes. Here’s how people learn to stay underwater for extended periods of time.
I mean for stuff like this with movies and diving, you breathe pure oxygen beforehand, which makes easier.
Even as far back as 1959, researchers demonstrated in seven untrained volunteers that breathing 100 per cent O2 prior to a breath hold resulted in maximum breath hold durations of six to 14 minutes. So Winslet’s seven-minute breath hold with only a few weeks’ training is definitely possible.
I mean for stuff like this with movies and diving, you breathe pure oxygen beforehand, which makes easier.