Conquering jet lag: practical steps

Jet lag is a temporary mismatch between your internal body clock and the time at your destination. It may cause difficulty sleeping at night, daytime sleepiness, headache, reduced concentration or feeling awake at an inconvenient hour. The direction and length of travel, sleep lost during the journey, and the timing of light exposure can all affect how the adjustment feels.

The aim is gradual alignment with local time rather than forcing sleep immediately. Bright daylight is a strong timing signal for the body clock, while bright screens and stimulating activity close to bedtime can make settling harder.

Before travel, move bedtime and wake time toward the destination when practical. On arrival, follow local meals and bedtime, spend time outdoors at a suitable part of the day, keep the bedroom dark and quiet, and avoid heavy meals or alcohol close to sleep. Keep naps brief and earlier rather than sleeping through the local day. Do not drive or operate machinery if daytime sleepiness is affecting alertness. A travel health consultation can help with timing and medication questions.

Ask for medical advice if sleep disruption continues after the travel adjustment period, repeatedly affects work or safety, or becomes a pattern after every journey. Seek urgent help for confusion, fainting, severe headache with neurological symptoms, chest pain or breathing difficulty. Persistent insomnia may need assessment for a separate sleep problem.

Ask when to seek daylight at your destination, whether any medicine or supplement is suitable for you, and how to manage jet lag alongside existing sleep, mood or neurological conditions. Share your itinerary, usual sleep schedule and planned driving or safety-critical work.