← All briefs
sleep healthAugust 2, 2026

Your gut can get jet lag too: How not to waste the first days of your vacation

Original reporting: Your gut can get jet lag too: How not to waste the first days of your vacation

A woman gazes thoughtfully out the window of an airplane during her journey.
Illustrative photo by Adrienn on Pexels

Long flights disrupt more than sleep—your gut bacteria may also feel the time change, leading to fatigue and digestive issues.

Related resource — affiliate link: We may earn a commission if you choose to visit an optional resource. Explore a related sleep health resource.

Reader resource: See another option for sleep health.

Three things to remember

  • Travelers often face fatigue, sleep problems, and low energy after long flights.
  • Time zone changes may also affect the trillions of bacteria in your gut.
  • These symptoms may stem from more than just classic jet lag.

Source

This signal is based on Your gut can get jet lag too: How not to waste the first days of your vacation from Medical Xpress Sleep. Read the original report for full context.

Affiliate disclosure: These optional resources may earn us a commission. View the related resource.

Health note: Based on expert commentary; specific effects on gut bacteria are not yet fully understood.