WHAT IS JET LAG?

Prescribed it.WHAT IS JET LAG?

Jet lag is a temporary sleep disorder that occurs when your body’s internal clock (circadian rhythm) is out of sync with a new time zone after rapid long-distance travel. It can lead to a range of symptoms that affect your sleep, mood, and daily function.

Common symptoms of jet lag include:

  • Difficulty falling asleep or staying asleep
  • Daytime fatigue or drowsiness
  • Poor concentration or memory
  • Mood changes such as irritability or anxiety
  • Digestive issues like bloating or constipation
  • A general feeling of being unwell


Jet lag usually improves within a few days as your body adjusts to the new time zone, but support and treatment can speed up recovery.

WHAT CAUSES JET LAG?

Prescribed it.WHAT CAUSES JET LAG?

Jet lag is caused by crossing multiple time zones quickly, which confuses your body’s natural rhythm. The more time zones you cross—especially flying east—the more severe symptoms may be. Contributing factors include:

  • Disruption of your sleep-wake cycle
  • Cabin pressure and dry air
  • Lack of exposure to natural sunlight
  • Poor hydration or alcohol/caffeine intake during flight

WHAT TREATMENTS ARE AVAILABLE FOR JET LAG?

Prescribed it.WHAT TREATMENTS ARE AVAILABLE FOR JET LAG?

Effective treatment options include:

  • Melatonin supplements to help reset your sleep cycle
  • Jet lag tablets (prescription and OTC)
  • Sleep hygiene techniques: avoiding screens before bed, staying hydrated, limiting caffeine
  • Light exposure management: spending time in daylight at your destination helps realign your body clock


Our clinicians can recommend the most suitable jet lag treatment based on your travel plans and health needs.

Frequently asked questions

  • How long does jet lag last?

    Jet lag usually lasts a few days, but it can take up to a week to fully adjust. The general rule is that it takes about one day to recover for each time zone crossed.

  • Can jet lag be prevented?

    You can’t always prevent jet lag, but you can reduce its severity by adjusting your sleep schedule a few days before travel, staying hydrated, avoiding alcohol, and using melatonin or light exposure to help reset your body clock.

  • Is jet lag worse when flying east or west?

    Jet lag tends to be worse when flying east because you're "losing" time, which shortens the day and disrupts your sleep cycle more than when flying west.

  • Are there treatments for jet lag?

    Yes. Treatments may include melatonin supplements, sleep aids, and natural light exposure strategies. Our clinicians can recommend safe and effective options tailored to your travel schedule.

  • Can children get jet lag?

    Yes, children can experience jet lag just like adults. However, they may recover faster. Maintaining routines and ensuring rest during travel can help minimise symptoms.

  • Should I take medication for jet lag?

    In some cases, medications like melatonin or short-term sleep aids may help regulate your sleep cycle. These should be taken under medical guidance, especially if you have underlying conditions or take other medications.

  • Does jet lag get worse with age?

    Yes, older adults often take longer to adjust to new time zones, and symptoms may be more intense. Proactive strategies and treatments can help ease the transition.

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