Why do people living at a high altitude seem to be red?
They seem to be reddish because of greater concentration of hemoglobin the oxygen carrying protein the main component of red blood cells.
Last updated on 19 May 2023
Supplemental oxygen is required above 10,000 feet
High hemoglobin level is most often caused by low oxygen levels in the blood (hypoxia), present over a long period of time. Common reasons includes bone marrow disease that causes abnormal increase in red blood cells (polycythemia vera) Congenital heart disease and heavy smoking.
At altitude, the reduced oxygen content of the blood induces breathing instability, with periods of deep and rapid breathing alternating with central apnea. This breathing pattern is called high-altitude periodic breathing (PB).
If you have altitude sickness you should first acclimatise with the enviroment for 24-48 hours before stepping out to do any activity.
The advantage of altitude training is that the muscles get a natural boost when more oxygen is available during lower-altitude competitions.
Hb Test, Hb
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