I do pranayama (which is more widely popularized as Wim Hof breathing). It involves hyperventilating, followed by exhaling completely and holding your breath fo

I do pranayama (which is more widely popularized as Wim Hof breathing). It involves hyperventilating, followed by exhaling completely and holding your breath for up to 2 minutes. I’ve found this breath retention/mild hypoxia period to be highly creative and have instantly come up with visual solutions to some hard problems I’ve been working on during it.