The Executive Travel Protocol

I. Pre-Flight: Setting the Anchor

Goal: starting the synchronisation process before take-off.

• The fasting protocol: stop eating four to six hours before departure. Digestion is a major circadian signal; pausing intake effectively unlocks your internal clock, making it easier to reset on arrival.
• Hydration loading: drink a litre of water with electrolytes (sodium, potassium, magnesium) two hours before boarding. Cabin air is exceptionally dry, and dehydration is a major driver of jet lag fatigue.

II. In-Flight: The Biological Dark Room

Goal: minimising the inflammatory impact of the cabin environment.

• The no-food rule: skip airline meals. Digestion in flight is inefficient; stick to water, black coffee or tea.
• Light: wear blue-light-blocking glasses or a good eye mask.
• Sound: use noise-cancelling headphones to reduce the fatigue caused by constant low-frequency engine hum.
• Movement: every 90 minutes, do two minutes of calf raises or isometric stretches to maintain blood flow and prevent lower-limb swelling.

III. Arrival: The Re-Sync Protocol

Goal: feeding the brain new environmental data, fast.

• The light anchor (the most important step): on arrival, get 15–20 minutes of daylight in your eyes, without sunglasses. This tells your suprachiasmatic nucleus, the brain’s master clock, where you are in the world.
• The first meal: eat a high-protein meal at local breakfast or lunch time to signal that the day has begun.
• Thermal reset: take a cold shower (to raise alertness) or a sauna or hot bath (to encourage sleep), depending on the local time. Temperature is a powerful circadian zeitgeber (time-giver).

IV. The Travel Supplement Stack

Goal: targeted support for the transition.

• Melatonin (tactical use): 0.5–3mg, 30 minutes before local bedtime for the first two nights only. Not for long-term use.
• Magnesium glycinate: 400mg before the first local sleep, to counter the cortisol spike of travel.
• N-acetyl cysteine (NAC): 600mg during the flight, to help the liver handle the oxidative stress of cosmic radiation and poor air quality.

V. The Grounding Protocol

• Exercise: do a brief, high-intensity 15-minute workout within 12 hours of arrival. It improves insulin sensitivity and helps reset the peripheral clocks in your muscle tissue.
• Go barefoot: if possible, walk barefoot on grass or sand. The sensory input and temperature shift help the nervous system orient to the new environment.