What should you know about bad jet lag?

Crossing time zones changes the timing of light, meals and activity relative to your internal clock. Jet Lag may cause Difficulty Sleeping at the new bedtime, waking too early, headache, irritability, reduced focus or Daytime Sleepiness. The direction and number of time zones, arrival time, sleep before travel and your ability to follow local routines all affect the experience. Jet lag is different from an infection, although travel can expose you to other causes of headache or fatigue.

Adopt local meal and sleep times, seek daylight during the local day, and keep evening light low when preparing for bed. Drink water, move gently after a long flight, and use a short nap only if needed so it does not replace local night sleep. Avoid driving or safety-sensitive work while very sleepy. Insomnia Management can offer structured sleep strategies. For complex itineraries, a Travel Health Consultation can help plan timing, medicines and health precautions.

Seek medical advice if symptoms are severe, do not begin settling after your return to a regular schedule, or repeatedly interfere with work and safety. Get urgent help for sudden severe headache, weakness, confusion, chest pain, breathing difficulty, fainting or new neurological symptoms. Persistent sleep trouble may need assessment for Insomnia or another condition rather than being attributed to travel alone.

How should I shift my sleep and light exposure for this itinerary? Are any medicines safe with my health conditions? How can I tell jet lag from a sleep disorder or another travel-related illness?