What should you know about jet lag 3 days later?

Your internal clock uses light, activity, meals, and sleep to time alertness and rest. After crossing time zones, these signals may disagree with the local schedule, so you can feel sleepy during the day and awake at night. Symptoms may last longer after a larger time difference, an eastward journey, repeated late nights, or poor sleep during travel. Persistent insomnia, very pronounced daytime sleepiness, or symptoms unrelated to the journey may point to another problem rather than jet lag alone.

Keep a consistent local wake time and spend time in outdoor daylight during the part of the day that helps you stay alert. Eat and exercise on local time, keep the bedroom dark and quiet, and reduce bright screens before bed. Avoid using alcohol to force sleep. If you nap, keep it brief and earlier rather than allowing it to replace nighttime sleep. Insomnia Management can provide structured sleep guidance; a Travel Health Consultation may help with future journeys and medicines.

Book an appointment if sleep or alertness remains substantially disrupted after your routine has had time to settle, or if symptoms are worsening rather than easing. Seek urgent help for severe or sudden headache, confusion, fainting, chest pain, weakness on one side, or trouble speaking. Arrange advice sooner if you must drive, operate machinery, work at height, or make safety-critical decisions while unable to stay alert. Headache, Difficulty Sleeping, and Daytime Sleepiness may help you describe the pattern clearly.

Ask whether your sleep pattern is consistent with Jet Lag or Insomnia, how to time light exposure, and whether any medicine or supplement is suitable for you. Mention your departure and arrival times, direction of travel, number of time zones crossed, usual sleep schedule, caffeine and alcohol use, snoring, and any existing health conditions.