Whenever you travel overseas on a long airline trip, there are two dreaded words we all hate to hear, jet lag. We all get it. Jet lag is that awful feeling of confusion and tiredness that comes about as a result of a long journey, especially one that involves traveling overseas. Jet lag can often steal several days of your overseas visit.

Those who may be on a business trip can lose an important deal due to your brain not functioning at a high level. Or if you're on a vacation, you can lose some of your valuable rest and relaxation. No fun there! Jet lag is quite common. A survey by Conde Naste said 93% of travelers get jet lag. Even 96% of flight attendants get it. So what causes jet lag anyway?