True story here. If you're fit you can train this pretty easily. I count my time pushing against the current in Northern CA with free diving fins, a 5mm suit and a speargun and I can manage 2:30. In a warm pool with no current, no sharks and plenty of time to relax I can hit 3:45 and I'm old and out of shape.
When I was in high school I could hold my breath all the way through comfortably numb. None of my friends could even come close. My technique was to breath in and out real fast until I felt tingly.
Which is dangerous and should not be done that way, see my other comment here. Doing it that way masks the signals you get, drastically increasing the chances of blacking out.
True story here. If you're fit you can train this pretty easily. I count my time pushing against the current in Northern CA with free diving fins, a 5mm suit and a speargun and I can manage 2:30. In a warm pool with no current, no sharks and plenty of time to relax I can hit 3:45 and I'm old and out of shape.
When I was in high school I could hold my breath all the way through comfortably numb. None of my friends could even come close. My technique was to breath in and out real fast until I felt tingly.
Which is dangerous and should not be done that way, see my other comment here. Doing it that way masks the signals you get, drastically increasing the chances of blacking out.