Stop dreading time zone travel. This guide gives you the real science behind jet lag — and the specific, evidence-based strategies that actually speed up recovery.
Learn how circadian rhythm works, why eastward travel is harder than westward, and how to use the two most powerful tools available: strategic light exposure and properly timed melatonin. You'll also find pre-flight schedule shifting, in-flight strategies, hydration and sleep scheduling, guidance calibrated to trip length, and specific advice for children, older adults, and frequent business travelers — plus common myths debunked and a quick-reference glossary.
Whether you're a once-a-year vacationer or a frequent flyer, this guide gives you a genuine, actionable plan for crossing time zones with less fog and more confidence.