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.
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.