[The possibility of the occurrence of hyperventilation apnea and loss of consciousness].

In work influence of various temporary modes of free hyperventilation of the lungs was investigated, usually used by the sportsmen before diving on reduction of the contents of CO2 in exhaling air of healthy men-divers. Attention was paid to the opportunity of occurrence of posthyperventilation apnea and loss of consciousness. It is shown, that washing away CO2 from organism at hyperventilation is limited. Hyperventilation (their depth and frequency was chosen arbitrary), spent during 60, 120, 180, 360 seconds causes in healthy trained men apnea and loss of consciousness.