One of the most frustrating and weird things about flying is the phenomenon of jet lag. If you’re taking a long flight to a completely different time zone, your sleep schedule may be completely out of whack, as your circadian rhythm — the roughly 24-hour cycle that dictates when you sleep — will need to adjust. However, you don’t have to wait until you’re at your destination to adjust to local time; you can start as soon as you step on the plane.
You can begin to acclimate yourself to a new time zone and sleep schedule by changing the time on your watch or phone to the time at your destination as soon as you get to your seat. And during the flight, you should try to keep your in-flight meals and sleep schedule in-line with your destination’s time zone. This will help you adjust psychologically as well as physically to your new schedule, making it easier for you to stay awake and fall asleep at the appropriate times once you’ve arrived. If possible, adjusting to your destination’s time zone a few days before you leave home is another effective way of preventing jet lag.