41. In high altitudes is it
necessary for the blood to
have more or less
hemoglobin?

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In high altitudes air is rarefied
oxygen concentration is than in
low . In this situation
efficiency of the system
must be and thus the
synthesizes more hemoglobin (
more red blood ) trying to get
oxygen. This phenomenon known as
compensatory .
The compensatory hyperglobulinemia
the reason why that will
compete high altitudes need arrive
in the some days before event
so there time for their to make
more blood cells and will be
less by the effects the low
atmospheric concentration
(fatigue, reduced strength).