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Jet lag after flying across time zones

Also called: Jet lag

Jet lag after flying across time zones causes tiredness and poor sleep for a few days.

Common causesTime zone travel
Usually serious?No
Get checked ifLasting more than a week
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

Recovery takes about a day per time zone.

Light helps reset the clock.

When to get medical care

Call 911Not an emergency.
Get care todayNot usually urgent.
See a doctor soonLasting more than a week.

Causes

Caused by time zone changes.

OwieClear has pages on 1 condition that can cause jet lag after flying across time zones. Each shows how soon to get care.

Common causes

  • Jet lagOften treated at home

    Tiredness, trouble sleeping, poor focus, and upset stomach after flying across time zones.

What you can do at home

  • Get daylight.
  • Adjust sleep before travel.

Medicines

Melatonin may help.

At the doctor

Diagnosed by history.

Questions you may be asked

  • Travel

The exam

A physical exam.

Tests

  • None

Prevention

Plan ahead.

  • Shift sleep before travel

Check your symptoms

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Sources

Last updated 2026-11-13.