Jet lag and sleep problems
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Jet lag and sleep problems
Jet lag is caused by flying in an airplane and crossing one or more time zones, such as traveling east to west or west to east. Crossing time zones disrupts the body's biological "clock," or 24-hour rhythms (circadian rhythms). Sleep patterns are one of these rhythms. Jet travel across time zones may make it hard for you to fall asleep or stay asleep at night and stay awake during the day. Jet lag also can cause fatigue, irritability, and indigestion.
The symptoms of jet lag may take from one to several days to go away. Jet lag usually lasts longer when you fly east than when you fly west.1
Melatonin is a hormone the body makes that regulates the cycle of sleeping and waking. Taking melatonin may help "reset" your sleep and wake cycle. Some studies show that using it reduces how much jet lag people report on both eastward and westward flights,2 but other studies have not shown a benefit.3
There are other things you can do to decrease the effects of jet lag. Be rested before you leave, and try to walk around during the flight so that you are not confined to cramped spaces for long periods of time. Do not drink alcohol, but drink lots of water, because the air in airplanes tends to be dry. Vitamins and herbal remedies that can be bought without a prescription can also be tried to help reduce jet lag. Going outdoors during the day may help fight jet lag by resetting your circadian rhythm.
References
Citations
Waterhouse J, et al. (2007). Jet lag: Trends and coping strategies. Lancet, 369(9567): 1117–1129.
Herxheimer A (2007). Jet lag, search date November 2006. Online version of BMJ Clinical Evidence. Also available online: http://www.clinicalevidence.com.
Murray MT, et al. (2006). Melatonin. In JE Pizzorno Jr, MT Murray, eds., Textbook of Natural Medicine, 3rd ed., vol. 1, pp. 1057–1064. St. Louis: Churchill Livingstone Elsevier.
Credits
| Author | Susan Van Houten, RN, BSN, MBA |
| Editor | Sydney Youngerman-Cole, RN, BSN, RNC |
| Associate Editor | Tracy Landauer |
| Primary Medical Reviewer | William M. Green, MD - Emergency Medicine |
| Specialist Medical Reviewer | Lisa S. Weinstock, MD - Psychiatry |
| Last Updated | January 12, 2007 |
| Last updated: | January 12, 2007 |
|---|---|
| Author: | Susan Van Houten, RN, BSN, MBA |
| Reviewed By: | William M. Green, MD - Emergency Medicine, Lisa S. Weinstock, MD - Psychiatry |
| Editors: | Sydney Youngerman-Cole, RN, BSN, RNC, Tracy Landauer |
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