For the prevention and treatment of Daytime Fatigue associated with Jet Lag

Jet lag is a syndrome associated with rapid long haul flights across several time zones, characterized by sleep disturbances, daytime fatigue, reduced performance, gastrointestinal problems, and general malaise.

As with most syndromes, not all of the components must be present in any one case. It is due to the “body clock” continuing to function in the day–night rhythm of the place of departure. The rhythm adapts gradually under the influence of light and dark, mediated by melatonin secreted by the pineal gland: darkness switches on melatonin secretion, exposure to strong light switches it off.

INCIDENCE/PREVALENCE
Jet lag affects most air travelers crossing five or more time zones.
The incidence and severity of jet lag increases with the number of
time zones crossed.

AETIOLOGY/RISK FACTOR
Someone who has previously experienced jet lag is liable to do so again. Jet lag is worse the more time zones crossed in one flight, or series of flights, within a few days. Westward travel generally causes less disruption than eastward travel as it is easier to lengthen, rather than to shorten, the natural circadian cycle.

There are several things you can do to help your body adjust:

1. Keep in touch with your own time zone. It will be easier to know when you should be eating or sleeping.
2. Plan ahead: start shifting your schedule slowly a few days prior to your trip.
3. Check with your pharmacist for advice if you are taking any medication.
4. Make sure you are as comfortable as possible during the trip. Bring warm clothes and take off your shoes during the trip.
5. Get some rest during the flight.
6. Avoid alcohol and caffeine, but make sure you stay hydrated by drinking water and juice.
7. Do not smoke
8. Stick with your ritual as much as possible
9. Do not watch the clock, listen to your internal clock
10. Exercise!

Taking a trip soon! Check out our Travellers page for handy travel items.