You land. Your throat feels like sandpaper. Your head is heavy. Your eyes sting. You've been sitting still for eight hours… so why does your body feel like it just ran a marathon?
Most travelers accept this as the price of flying. But there's nothing inevitable about it. These symptoms have specific, well-documented causes — and understanding them is the first step to actually doing something about them.
Here are five things flying is doing to your body right now. Some will surprise you.