Jet Lag

Jet Lag Calculator

Jet lag is a temporary sleep disorder where your natural sleeping pattern has been thrown out of sync with the country you are in.

Despite its glamorous appeal, for many, flying can often be a stressful and exhausting experience. Travelling across different time-zones can disrupt your internal circadian clock (your natural body-clock) which can cause lack of sleep. This is essentially what jet lag is.

This disturbance to your internal sleep pattern has an impact on your mental health and your other bodily functions. Children and infants are just as likely to be affected by jet lag as adults.

The Jet Lag Calculator can tell you how long it will take you to adjust to your new time zone when you travel – and to adjust back again when you come home. If you would like more information, bring your results with you to your travel consultation and a travel nurse can discuss how you can reduce your jet lag.

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Fleet Street Jet Lag Calculator

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What is Jet Lag?

Jet lag is a temporary sleep disorder caused by travel across multiple time zones.

Jet lag is a temporary sleep disorder caused by travel across multiple time zones. Your biological clock which regulates your sleep-wake rhythm doesn’t have enough time to adjust to the destination and is out of sync with the new time zone. The longer the flight, the higher your risk of jet lag.

What are the symptoms of Jet Lag?

Symptoms of jet lag are temporary and in most cases are solely an inconvenience.

Complications of jet lag are extremely rare and are usually due to an existing medical condition. Prolonged travel across different time zones can increase the severity of the symptoms.

Symptoms include:

  • Distrubed sleep leading to daytime fatigue
  • Reduced alertness
  • Increased irritability
  • Depression
  • Headaches
  • Gastrointestinal disturbances
  • Decreased appetite

I am travelling for business, when is it best to book a business meeting?

If you need to arrange meetings or any other activities on arrival that require you to be mentally alert, pick a time that corresponds to daylight hours in your home time-zone.

Accept that your performance may be reduced through jet lag, and avoid important business activities for at least the first 24 hours following arrival.

Are you travel-ready?

Need more information?

Book a travel consultation with one of our specialist travel nurses.

During your appointment, you can discuss all your travel plans and we can advise you on how to reduce your chances of jet lag as well as go through any travel vaccinations and travel medications you should consider. This personalised service will take into account all your travel plans and we’ll create a bespoke health plan to keep you healthy throughout your travels.

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Frequent travelling across different time zones is the cause of jet lag. The body will adjust to the new time zone naturally over time but whilst you are adjusting you will experience jet lag symptoms.

Give your body as many “clues” to your new time zone as you can; such as adjusting your wristwatch as soon as possible and observe local mealtimes and bedtimes.

Travelling east causes more problems than travelling west. This is because it is more difficult for your body clock to be advanced than delayed. Book a travel consultation to discuss how you can limit your chances of serious jet lag.

Avoid night-time flights when possible, especially if you won’t be able to lie down and sleep for six hours or longer; and if you can’t, build a rest period on arrival into your schedule.

There isn’t a method to completely prevent jet lag from occurring . This is a natural body response to a physical change. There are however proven methods to help your ‘body clock’ to adjust to the new time zone more quickly and therefore reducing the symptoms for a quicker recovery. You can discuss options with one of our travel specialist’s during a travel consultation.

We are conscientious that some of our patients or their close family members are deemed clinically vulnerable. Therefore, all our staff are fully vaccinated against Covid-19 for your protection and peace of mind.