The advisor has suggested the optimum time to expose yourself to light. Light is important because it is one of the primary cues that the body clock uses to maintain it’s link with the outside world.
When it comes to seeking light, any kind of light will do. Daylight is best, but if it’s not available, simply switching on a bedroom light is sufficient to help you minimise the effects of jet lag.
Avoidance of light at certain times is also an important cue to the body clock to help you recover more swiftly from the effects of crossing time zones.
Avoiding light can be achieved by drawing the blinds or curtains in the room you are in, or wearing an eye mask. If there’s nothing else you can do, then simply wearing dark glasses will help. (Okay...What about doing it at home....)
In addition, adjusting your exercise and main meal times to your new time zone will help to synchronise your body clock sooner.
