The Circadian Traveler: A Guide to Crossing Time Zones

Most people think jet lag is a sleep problem.
It is not. It is a timing problem.

Your body runs on a circadian rhythm that controls sleep, hormones, digestion, temperature, and energy. But your body is not on one clock. Your brain has a clock, but so does your liver, your pancreas, your gut, and your immune system. When you cross time zones, these clocks do not all reset at the same speed. That is why jet lag can feel like brain fog, poor sleep, digestive issues, and fatigue all at once.

The circadian system does not respond well to force. It responds to signals.
Light, food timing, movement, and sleep are the signals that tell your body what time it is.

When you send the right signals at the right time, the body can adapt much faster.

I wrote a guide called The Circadian Traveler to explain how to do this before, during, and after travel.