Altitude
At high elevations, the decreased atmospheric pressure reduces the amount of oxygen available, posing a risk for hypoxemia, especially in individuals not acclimatized to high altitudes. [5]
Sleep Disorders
Conditions like obstructive sleep apnea interrupt normal breathing patterns during sleep, leading to periodic drops in blood oxygen levels. [6]
Ventilation-Perfusion Mismatch
This occurs when areas of the lung receive oxygen without corresponding blood flow or vice versa, often due to chronic lung conditions or acute lung injuries.
