How to Actually Beat Jet Lag
Travellagio · 5 min read
Jet lag is a circadian rhythm disruption, not a willpower problem. Your body clock adjusts at roughly 1–1.5 time zones per day. A 9-hour time difference takes 6–9 days to fully adjust to naturally. Here’s how to speed that up.
What actually works
1. Light exposure is the #1 tool
Your circadian clock is primarily controlled by light. Flying east: seek morning light at your destination, avoid evening light. Flying west: seek evening light, avoid morning light. This is the single most effective intervention.
2. Shift your sleep schedule before you leave
Start going to bed 30–60 minutes earlier (flying east) or later (flying west) for 3–4 days before your trip. Even a partial shift helps.
3. Melatonin (small dose, right timing)
0.5–3mg of melatonin taken 30 minutes before your target bedtime at the destination can help reset your clock. More is not better — higher doses cause grogginess without additional benefit.
4. Stay hydrated, skip alcohol on the flight
Dehydration worsens jet lag symptoms. Alcohol disrupts sleep quality. Coffee is fine in moderation but stop 8 hours before you want to sleep.
What doesn’t work
- “Staying awake until local bedtime” — if you arrive exhausted at 2 PM local time, a 90-minute nap is better than zombie-walking until 10 PM.
- Sleeping pills on the plane — they knock you out but don’t improve circadian adjustment.
- Earthing/grounding — no scientific evidence for jet lag specifically.