Reddit reviews Manual of Freediving Underwater on a single breath Second Edition
We found 1 Reddit comments about Manual of Freediving Underwater on a single breath Second Edition. Here are the top ones, ranked by their Reddit score.
Greatest book concerning free-diving.
https://www.amazon.com/Manual-Freediving-Underwater-single-breath/dp/1928649491/
Also, you must never hyper-ventilate, as it increases your probability of fainting. Hyper-ventilation refers to taking sharp and quick breaths prior to going under.