Was Fight Club right about oxygen?

The oxygen gets you high. You're taking in giant, panicked breaths and, suddenly, you become euphoric and docile, and you accept your fate. In Real Life: Bogus, says air safety expert Todd Curtis. That is a theory not backed up by facts, he told Seattle's The Stranger in February 2000.



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When you fly on an airplane, the flight attendant instructs you to “put your oxygen mask on first,” before helping others. Why is this an important rule for ensuring survival? Because if you run out of oxygen yourself, you can't help anyone else with their oxygen mask.

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With loss of cabin pressurization at altitude, pressure breathing of 100% oxygen at high airway pres- sures enables the pilot's alveolar PO2 to be maintained at a safe level during emergency descent.

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Without oxygen, you will quickly feel drowsy and even euphoric, a phenomenon known as hypoxia, but as time passes, continued lack of oxygen to the brain will lead to blackouts, passing out, and possibly even death.

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According to Airbus, if a plane loses pressure at 40,000 feet, those on board have as little as 18 seconds of “useful consciousness” without supplemental oxygen. Once the euphoria is over, hypoxia renders one unconscious and can cause brain damage or death. So wear the mask.

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Sure, everyone knows that you have to use supplemental oxygen if you fly more than 30 minutes at cabin pressure altitudes of 12,500 feet or higher. And that at cabin altitudes above 14,000 feet pilots must use oxygen at all times.

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