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- DictionaryJet lag/ˈjet ˌlaɡ/
noun
- 1. extreme tiredness and other physical effects felt by a person after a long flight across several time zones: "she was suffering from jet lag and needed to rest"
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Jet lag disorder
Jet lag, also called jet lag disorder, is a temporary sleep problem that can affect anyone who quickly travels across several time zones.
Your body has its own internal clock, called circadian rhythms. They signal to your body when to stay awake and when to sleep.
Jet lag occurs because your body's internal clock is synced to your original time zone. It hasn't changed to the time zone of where you've traveled. The more time zones crossed, t...
When to seek medical or mental health expertAlways seek the advice of your physician or other qualified health provider with any questions you may have regarding your health. Never disregard professional medical advice or delay in seeking it because of something you have read on the community.Symptoms of jet lag can vary. You may experience only one symptom or you may have many. Jet lag symptoms may include:
- Sleep problems such as not being able to fall asleep or waking up early.
- Daytime fatigue.
- Not being able to focus or function at your usual level.
- Stomach problems such as constipation or diarrhea.
- A general feeling of not being well.
- Mood changes....
A disruption to your circadian rhythms
Jet lag can occur anytime you cross two or more time zones. Crossing multiple time zones puts your internal clock out of sync with the time in your new locale. Your internal clock, also called circadian rhythms, regulates your sleep-wake cycle.
For example, if you leave New York on a flight at 4 p.m. on Tuesday and arrive in Paris at 7 a.m. Wednesday, your internal clock still thinks it's 1 a.m. That means you're ready f...
Jet lag is temporary and usually doesn't need treatment. Symptoms often improve within a few days, though they sometimes last longer.
If you're a frequent traveler bothered by jet lag, your health care provider may prescribe light therapy or medicines.
Light therapy
Your body's internal clock is influenced by sunlight, among other factors. When you travel across time zones, your body must adjust to a new daylight schedule. This allows you to ...
A few basic steps may help prevent jet lag or reduce its effects:
- Arrive early. If you have an important meeting or other event that requires you to be in top form, try to arrive a few days early to give your body a chance to adjust.
- Get plenty of rest before your trip. Starting out sleep deprived makes jet lag worse.
- Gradually adjust your schedule before you leave. If you're traveling east, try going to bed one hour earlier each night...
For informational purposes only and not a substitute for professional medical advice, diagnosis, or treatment.
© Mayo Clinic
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