Although the pressure of the cabin is adjusted to prevent altitude sickness, you could still experience sleepiness or a headache.
虽然机舱压力可以被调节，以避免人体发生高空反应，但你仍会感到困倦或头痛。
2
The lower oxygen pressure found in an aircraft cabin is equivalent to that at 6,000-8,000 feet of altitude.
机舱里的氧分压会更低，其数值跟6000到8000英尺高空的氧分压值一样。
3
In the air, passengers lose about 30% of their ability to taste as a result of extremely dry cabin conditions and high-altitudepressure inside airplanes.