Dehydration is something you don’t normally associate with flying. But according to travel health expert Diana Fairechild,

“In-flight air is drier than any of the world’s deserts. Relative humidity is 20-25% in the Sahara or Arabian deserts, while optimum comfort is around 50% humidity. In-flight cabin humidities gradually fall on long-distance, high-altitude flights in many cases approaching 1%.”

Here’s a quick summary of some of her tips to prevent dehydration:

• Drink at least 8 ounces of water for ever hour you’re on the flight. 
• Carry your own water bottle when you fly so you can drink before the flight attendant serves you.
• When on the airplane, only drink bottled or canned water. 
• Avoid alcohol and coffee which tend to dehydrate.
• Spritz your face with an atomizer filled with water.
• If your nostrils tend to get dry, lightly coat with edible vegetable oil.
• After landing, submerge yourself in water as soon as possible to hydrate your skin.

[ Via Air Travel Health News ]