The technique used in apnea diving is very advantageous for the diver, as it allows greater touch with nature in the seabed. But there are also risks.
With monitored exercises and training, you can increase the ability to stay without air for a longer time. To achieve this goal is also necessary to have a good physical and mental. Apnea is not a needed for diving, but makes the activity even more enjoyable.
But as other techniques, this activity also poses risks. As lack of oxygen causes “deletion”, sudden loss of consciousness, it is not advisable to practice this layering technique alone because there is a risk of drowning.