Hypobaric hypoxia refers to a condition characterized by reduced atmospheric pressure and lower oxygen levels at high altitudes. As altitude increases, the concentration of oxygen molecules in the air decreases, leading to a decrease in the partial pressure of oxygen in the lungs and subsequently in the bloodstream. This reduction in oxygen availability can have various physiological effects on the body.
At high altitudes, individuals may experience symptoms such as shortness of breath, fatigue, headache, nausea, and dizziness as their bodies adapt to the decreased oxygen levels. Prolonged exposure to hypobaric hypoxia can lead to more severe complications, including altitude sickness, pulmonary edema, and cerebral edema.
To mitigate the effects of hypobaric hypoxia, gradual acclimatization to higher altitudes is recommended, allowing the body time to adjust to the reduced oxygen levels. Supplemental oxygen and medications such as acetazolamide may also be used to alleviate symptoms and facilitate adaptation to high-altitude environments.
“Consider limiting alcohol on long haul flights”
The study randomly allocated 48 people to two groups — half were assigned to a sleep lab under normal ambient air pressure conditions (sea level) and half to an altitude chamber that mimicked cabin pressure at cruising altitude (2,438 m above sea level).
