jet lag
noun
: a condition that is characterized by various psychological and physiological effects (such as fatigue and irritability), occurs following long flight through several time zones, and probably results from disruption of circadian rhythms in the human body
Temporary fatigue, drowsiness, and loss of concentration are typical symptoms of isolated bouts of jet lag …—
J. Netting
J. Netting
Examples of jet lag in a Sentence
I had bad jet lag after that last trip overseas.
Recent Examples on the Web
Melatonin, a hormone regulating the sleep-wake cycle, is beneficial for short-term sleep issues like jet lag but lacks sufficient evidence for chronic insomnia treatment.
—Lauryn Higgins, Flow Space, 10 Mar. 2025
Yesterday was lost to a haze of jet lag and tiki drinks.
—Amanda Whiting, Vulture, 23 Feb. 2025
Melatonin may also help with insomnia and jet lag, but only as a short-term treatment option.3
In adults, melatonin is safe in doses of up to 8 milligrams for up to six months.
—Kirstyn Hill, Pharmd, Mph, Health, 3 Feb. 2025
It's often used to combat jet lag, adjust to shift work, and ease occasional insomnia.1 Unlike traditional sleep aids, melatonin is a natural hormone your body makes to regulate your sleep cycle.
—Kathleen Ferraro, Verywell Health, 22 Feb. 2025
See All Example Sentences for jet lag
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Lauryn Higgins, Flow Space, 10 Mar. 2025
Yesterday was lost to a haze of jet lag and tiki drinks.
—Amanda Whiting, Vulture, 23 Feb. 2025
Melatonin may also help with insomnia and jet lag, but only as a short-term treatment option.3
In adults, melatonin is safe in doses of up to 8 milligrams for up to six months.
—Kirstyn Hill, Pharmd, Mph, Health, 3 Feb. 2025
It's often used to combat jet lag, adjust to shift work, and ease occasional insomnia.1 Unlike traditional sleep aids, melatonin is a natural hormone your body makes to regulate your sleep cycle.
—Kathleen Ferraro, Verywell Health, 22 Feb. 2025
See All Example Sentences for jet lag
Cite this Entry
“Jet lag.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20lag. Accessed 23 Mar. 2025.
Copy CitationMedical Definition
jet lag
noun
: a condition that is characterized by various psychological and physiological effects (as fatigue and irritability), occurs following long flight through several time zones, and probably results from disruption of circadian rhythms in the human body
called also jet fatigue
jet-lagged
adjective
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