At which altitude does the air begin to be noticeably thinner?
At 12,500 feet the air becomes thinner and oxygen becomes lower making it difficult to breathe.
Last updated on 12 Dec 2024
Yes, oxygen is lower in higher altitudes
They seem to be reddish because of greater concentration of hemoglobin the oxygen carrying protein the main component of red blood cells.
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
High altitudes may mean ambient pressure can drop below vapour pressure hence, you might feel lethargy, sometimes unconciousness and if you are unable to cope up then connect with a doctor to know the best treatment.
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.
Hemoglobin, Iron Test
Access past pharmacy bills for easy reorder.