At what altitude do you need oxygen?
Supplemental oxygen is required above 10,000 feet
Last updated on 09 Dec 2024
Humans can survive at high altitudes. However, if you go to a high altitude, your body needs to adjust properly by getting used to it slowly or you could get sick.
Humans can certainly experience reverse altitude sickness, known as high-altitude de acclimatisation syndrome (HADAS). When people who live at low altitude have adjusted to a high-altitude, low-oxygen environment, they can get any of a large number of possible symptoms of HADAS when returning to a lower altitude.
At higher altitudes such as on top of a mountain, the air is less dense and this means that the partial pressure of oxygen is lower.
Sleeping at higher attitudes promote fitness as it provides enough exposure to stimulate the production of new red blood cells, whilst allowing you to maintain training quality at sea level.
At higher altitudes such as on top of a mountain, the air is less dense and this means that the partial pressure of oxygen is lower. Hence, the fall in atmospheric pressure at higher altitude decreases the partial pressure of inspired oxygen
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