How does lower cabin humidity during flight typically affect passengers?

Lower cabin humidity during flight significantly impacts passengers, primarily leading to dry skin, dry eyes, and increased dehydration. When humidity levels drop, which often occurs at cruising altitudes due to the pressurized cabin environment, it can cause moisture in the body to evaporate more quickly. This results in dry skin, which can feel uncomfortable and irritating.

Passengers also frequently experience dryness in their eyes, which can cause discomfort—particularly for those who wear contact lenses. In addition, reduced humidity levels can accelerate dehydration, as the body loses moisture more rapidly than it would in a higher humidity environment, leading to symptoms like thirst, fatigue, and overall discomfort.

Understanding this aspect of cabin design and how it affects passenger comfort is essential for both airline operations and individual well-being during flights. Maintaining adequate hydration and moisturizing the skin and eyes can help mitigate these discomforts while traveling.