I’m also quite certain that it’s not an ideal shape to stay in for hours when traveling to a race. Related Story 15 Destination Half Marathons You Need to RunEat SmartWe probably all know by now that air travel causes dehydration. Just as is true about race day, this is not the time to try new things. For the time spent on board, Dormer recommends building a travel sleep kit: earplugs, eye mask, noise-canceling headphones, travel pillow, and dress comfortably. Power naps and well-timed caffeine are both great ways to recover faster from jet lag—and they work even better when combined.