Theory
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Main difference of high altitudes compared to sea level conditions is the decreasing air pressure with increasing height. The oxygen partial pressure (pO2) among other characteristics is also reduced. The air gets “thinner“. The absorption of less oxygen however, has some positive effects…
In order to absorb enough oxygen in increasing altitudes, the human body begins with an increase of the heart rate and breathing. The low oxygen saturation in the blood, also know as hypoxia, causes a chain of positive biological adaptations. An increase in red blood cell production and thus, a better utilization of nutrients in muscles and tissues is only one example.
Here are further examples of adaptations that occur if the human body is exposed to high altitude conditions frequently:
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