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Jet lag is circadian misalignment from rapid time zone travel — causing insomnia, daytime sleepiness, cognitive impairment and GI symptoms.
Quick Answer
Jet lag is circadian misalignment from rapid time zone travel — causing insomnia, daytime sleepiness, cognitive impairment and GI symptoms. Dr. Jitendra Prasad Yadav (NMC 8029, 15+ years of clinical experience) evaluates jet lag disorder at Kathmandu Neurology Clinic & Cognitive Center, 117 Lal Durbar Marg, Kathmandu, Bagmati Province 44600, Nepal — evidence-based, medically reviewed.
Jet lag disorder is caused by rapid travel across time zones — the body's circadian rhythm (regulated by the suprachiasmatic nucleus) can't adjust quickly to the new light-dark cycle. Symptoms include insomnia, excessive daytime sleepiness, cognitive impairment, GI disturbance and general malaise. Eastward travel is typically harder than westward.
Irritability
GI symptoms (constipation, diarrhea)
Management is individualized and discussed with benefits, limitations, and follow-up.
General malaise
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Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.
Doctor — medically reviewed
Dr. Jitendra Prasad Yadav
Consultant Neurologist & Headache Specialist • MBBS, MD (Internal Medicine), FICN (Neurology), FCNV, FIHM • NMC 8029
This condition guide was medically reviewed by Dr. Jitendra Prasad Yadav.
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