How long does a travel health consultation take to work for jet lag?

The consultation does not switch your body clock immediately. A clinician reviews your route, time zones, sleep pattern, medicines and health conditions, then discusses practical timing for sleep, daylight and activity. Jet lag can cause sleepiness, poor concentration, low energy or unsettled sleep after crossing time zones. The timing of improvement varies with the direction and distance of travel, your schedule and how well you can follow the plan.

Advice may be most useful before departure, because a plan can begin around the journey and continue after arrival. If a medicine is considered, the clinician should explain whether it is suitable, when to take it and what side effects or interactions matter.

Arrange the consultation early enough to discuss your itinerary and regular medicines. Bring departure and arrival times, your usual sleep hours, the time zone you are travelling to and details of any stopovers. After arrival, use the recommended local sleep schedule, seek daylight at the advised times, keep hydrated and avoid driving or demanding tasks when very sleepy. Do not change prescription medicines or use sleep aids based only on travel advice from another person.

Seek medical advice if severe sleepiness, confusion, fainting, chest symptoms or breathing difficulty develops, or if symptoms do not start settling after returning to a normal routine. Contact a clinician sooner if you have bipolar disorder, epilepsy, a condition affected by sleep loss, or take medicines that may interact with a proposed sleep aid.

Ask when to begin adjusting your sleep schedule, which light exposure times fit your route, whether any medicine is appropriate for you, and what warning symptoms should prompt help.