why do mountaineers usually suffer from nose bleeding when they reach high altitude
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Air pressure goes on decreasing as we go higher up, so at high altitudes, the atmospheric pressure becomes less than the pressure exerted by the blood inside the body. This causes some of the blood vessels burst and the nose starts bleeding.
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2
Answer:
as altitude increases pressure decreases thus their will be pressure gradient between blood vessels and atmosphere. the blood vessel near the nose bursts and nose starts bleeding
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