Jet lag after a week: what to know

Travel can leave the brain's timing system out of step with the day-night pattern at your destination. By a week, many people notice clearer improvement, but the pace varies with travel direction, number of time zones crossed, sleep loss, and individual health. Persistent early waking, trouble falling asleep, daytime sleepiness, irritability, or headache can still reflect jet lag. Symptoms that are unchanged, worsening, or unrelated to the trip should be assessed rather than automatically attributed to travel.

Keep one consistent local wake time, including after a poor night. Seek daylight and normal daytime activity, then reduce bright light and stimulating activities near bedtime. Avoid using alcohol as a sleep strategy, and keep naps brief and earlier if you need one. Check medicines and supplements with a professional before taking anything for sleep, because timing and interactions matter. Protect enough time for sleep and avoid driving when drowsiness slows your reactions.

Contact a doctor if a week of symptoms is affecting daily functioning, if you cannot establish a local sleep pattern, or if sleep problems continue despite a regular routine. Get urgent help for sudden severe headache, new neurological symptoms, fainting, chest pain, severe breathing difficulty, or confusion. Difficulty sleeping that persists beyond the travel adjustment period can be insomnia or another condition and may need a separate plan.

Ask what could be maintaining the symptoms, whether your medicines or health conditions affect sleep timing, and whether a structured insomnia-management approach or travel-health consultation would help.