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.
Swim lots of underwater laps, apply progressive overload. So more distance covered underwater with longer laps, more sets of laps, more laps itself. And never do it alone, don't want to drown.
If that's an option where you live and have access to a pool and can swim
Though you won't hit numbers like holding your breath for multiple minutes without years of training or pure oxygen beforehand.
Swim lots of underwater laps, apply progressive overload. So more distance covered underwater with longer laps, more sets of laps, more laps itself. And never do it alone, don't want to drown.
If that's an option where you live and have access to a pool and can swim
Though you won't hit numbers like holding your breath for multiple minutes without years of training or pure oxygen beforehand.