Beat Jet Lag
Shift your body clock deliberately with timed light and a correctly-timed low dose of melatonin, so you land closer to local time instead of writing off the first three days.
Jet lag is your internal clock stuck on home time. The science is settled on the levers that move it: timed light is the most powerful, and a low dose of melatonin at the right moment nudges it further. The catch most people miss is direction and timing. Flying east means advancing your clock (harder); flying west means delaying it (easier). The honest part: this is mostly behaviour. The few products here are real but minor, the work is light, timing and patience, roughly one day of adjustment per time zone, a bit slower going east.
Why it works▼
Work out whether you need to advance or delay
The whole protocol flips depending on direction; getting this wrong makes jet lag worse.
Nudge your schedule 2 to 3 days early for long trips
Pre-shifting means you land already part-way adjusted.
Get bright light at the right end of your day
Timed light is the most powerful lever for resetting the clock.
Block light at the wrong end of your day
Blocking ill-timed light protects the shift you are trying to make.
Take 0.5mg at destination bedtime, correctly timed
0.5mg matches 5mg for phase-shifting with fewer side effects; timing matters more than dose, and the wrong time backfires.
Eat, move and sleep on the destination clock from arrival
Meal timing and activity are secondary clock signals that reinforce the light shift.
Hydrate well; avoid alcohol in flight
Alcohol degrades sleep quality exactly when you need recovery sleep.
- Frequent flyers and long-haul travelers
- Anyone crossing 3+ time zones
- Business travelers who must perform on arrival
- People who lose days to every trip
- Timing is everything: melatonin taken at the wrong hour can shift your clock the wrong way and worsen jet lag; if unsure, lean on light and skip the pill
- Melatonin is a supplement, not regulated like a drug; dose and quality vary between brands, so choose third-party tested and start at 0.5mg
- Pregnancy, on medications (including blood thinners or sedatives), or any medical condition: check with a doctor before using melatonin
- For trips of only 1 to 2 time zones, a full night of sleep and daylight on arrival is usually enough; you may not need anything here
- We may earn a commission on products bought through this page; sunlight, an eye mask and a local schedule are the free core
- Educational only, not medical advice
- July 3, 2026 Protocol published.
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Not medical advice. This page is for education only and is not a substitute for professional medical care. Consult a qualified clinician before changing your health routine.
Editorial disclosure. This protocol is written and fact-checked by the YourProtocol.ai editorial team directly from the primary sources cited below; it is not written or reviewed by any outside expert.