Jet Lag

Jet lag is not linked to the length of flight, but to the west-east distance traveled. A ten-hour flight from Europe to southern Africa does not cause jet lag, as travel is primarily north-south. A five hour flight from the east to the west coast of the United States may well result in jet lag. Crossing one or two time zones does not typically cause jet lag. Jet lag can be aggravated by air travel itself as it usually entails dehydration, lower oxygen intake due to the conditioned cabin air, tiredness and lack of sleep or stress.

  • Ensure that you are well rested and have a light snack rather than a heavy meal before you embark on your journey.
  • Drink plenty of water, at least 250ml (half a pint) of water for every hour spent on an airplane.
  • Refrain from sugared or caffeinated foods as they will keep you awake and do not take any sleeping aids.
  • Get some gentle exercise by walking around on the plane provided the seat belt sign is switched off, move your hands, feet and legs and stretch your neck muscles.
  • If you have any questions or would like more information please call the pharmacist on 01260 295701.


Pharmadoctor can provide you with an online prescription for jet lag following an online consultation with our GMC-registered doctor. Keen Pharmacy works with Pharmadoctor to provide an online consultation and prescription service. Simply click on the online doctor banner or click on the treatment you want to link through to the PharmaDoctor website.

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