← Notes·On the ground·3 min read

Jet lag, honestly

What works: light, fasting, walking. What doesn't: melatonin lottery, sleeping pills, 'pushing through.'

Updated 22 April 2026


After enough Singapore-to-Europe red-eyes, here's what's actually moved the needle. None of it requires a supplement aisle.

Going east (SG → Tokyo, Seoul)

  • Easy mode. 1–2 hour shift. Just eat on local time from the first meal.
  • Land in the morning, no nap. Walk for two hours in daylight, ideally before noon.
  • Sleep at 10pm local, even if you're not tired.

Going west (SG → London, Lisbon)

  • The hard direction. 7–8 hours backwards. Plan for 48 hours of fog.
  • Skip the in-flight wine. Hydrate aggressively — 500ml every 2 hours.
  • Land, drop bags, walk in sunlight. Eat a real meal at the local lunch hour even if you're not hungry.
  • Earliest you can sleep: 9pm local. If you crash at 5pm you'll be wide awake at 2am.

What I've stopped trying

  • Melatonin — works for some people, knocks out others, never reliable.
  • Sleeping pills on the flight — you wake up groggy, dehydrated, and still jet-lagged.
  • 'Adjusting' three days before the flight. Nobody actually does this. You're going to a wedding, not a clinical trial.
"Light is the drug. Walk outside before noon on day one and the rest sorts itself."

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