Jet lag
Resetting your clock after crossing time zones.
Crossing time zones throws off your body clock, which takes a few days to reset. Light is your best tool to help it.
Before and during the trip
- A few days before leaving, gradually shift your sleep hours towards those of your destination.
- On arrival, switch straight to local times for meals and sleep.
Using light
- Light resets your clock. Seek it or avoid it depending on the direction of travel and the local time.
- A short nap can help you cope, without replacing a real night at local time.
Frequently asked questions
How do you recover from jet lag?
On arrival, switch right away to local times for meals and sleep, and use light to reset your clock. It usually takes a few days to adjust.
Can you prepare your body before the trip?
Yes. A few days before leaving, gradually shift your sleep times toward those of your destination, to reduce the gap on arrival.
How do you use light against jet lag?
Light resets your body clock: seek it or avoid it depending on the direction of travel and local time. A short nap can help you cope, without replacing a night on local time.