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The mild hypoxic environment of the flight also increases the breathing rate, the combination of which results in water loss. When the air pressure changes in high altitudes, the build-up of gas in the body leads to constipation, bloating and other gastrointestinal issues.
Also, as the body doesn't move and you are sitting in a cramped space for a long time, this causes the blood to build-up in the legs which increases the risk of deep vein thrombosis. While travelling on a plane, you have often experienced the hostesses instructing the passengers on putting on an oxygen mask in case of emergencies.
Stick to the instruction and put on an oxygen mask if you are experiencing shortness of breath. The whole body dries out completely, including your nose, mouth and throat. To keep your nasal passages moist and to prevent nosebleeds, carry a nasal saline spray with you while travelling in a plane.
For Quick Alerts. Using supplemental oxygen until the airplane descends to 10, feet and air pressure within the cabin returns to normal can truly save your life in an emergency. Their column runs Mondays in Bay Area Living. You can write to them at P. Box , Pleasanton or send e-mails in care of living angnewspapers.
Questions cannot be answered individually; however, some will be discussed in future columns. By Bay Area News Group. Report an error Policies and Standards Contact Us. More in News. Below 10, ft, the reduced levels of oxygen are considered to have little effect on aircrew and healthy passengers but above that, the effect becomes progressively more pronounced. Above 20, ft, lack of oxygen leads to loss of intellectual ability followed by unconsciousness and eventually respiratory and heart failure.
When suddenly deprived of normal levels of oxygen, estimates of the Time of Useful Consciousness are a pertinent guide - at 35, ft it is less than one minute. See the separate article on Hypoxia for more detailed information. Sara is an associate editor at PopSci where she writes about everything from vaccine hesitancy to extreme animal sex. Contact the author here. Historical documents show that avalanches in French mountains have retreated upslope.
Scientists finally understand what's inside superionic ice. Big climate policies are finally in the works in the US, but opposition remains. Sign up to receive Popular Science's emails and get the highlights. Interior of Asiana Airlines Flight Why is an unpressurized plane dangerous?
How does this even happen? Sara Chodosh Sara is an associate editor at PopSci where she writes about everything from vaccine hesitancy to extreme animal sex. Like science, tech, and DIY projects?
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