Jet Lag Survival Guide: What Actually Works

Jet lag, briefly

Your body keeps a circadian clock tuned to local light. When you fly fast across time zones, that clock is wrong by hours. Symptoms — bad sleep, fog, GI upset — last roughly one day per time zone crossed if you do nothing.

The interventions below cut that meaningfully.

What actually works

1. Light timing is everything

Light is the strongest signal to your circadian clock.

• Eastward travel (US → Europe): seek bright morning light at the destination, avoid evening light.
• Westward travel (Europe → US, US → Asia): seek late afternoon light, avoid morning light for a day or two.

A sunrise walk on day 1 east of your origin is worth more than any pill.

2. Strategic melatonin

Melatonin (0.5 mg, not 5 mg) taken at the destination's local bedtime can advance or delay your clock. Lower doses work better than the giant ones sold in airport shops. Skip if you take certain SSRIs; consult a doctor.

3. Sleep on the right schedule on the plane

If it'll be night when you land — try to sleep on the plane. If it'll be morning — try to stay awake.

This sounds obvious and almost nobody does it.

4. Hydration and food

Cabin air is dry. Drink water aggressively. Eat lightly. Avoid alcohol — it wrecks sleep architecture and dehydrates you.

5. Movement

Walk the aisle every couple of hours. Reduces clot risk and helps the post-flight grog.

What doesn't really work

• Big melatonin doses (5 mg+).
• "Adjusting your sleep schedule a week in advance" — most people can't, and partial adjustment is worse than none.
• Sleeping pills that knock you out for the whole flight — you'll arrive even more disoriented.

A practical 24-hour plan for transatlantic east-bound

• At the airport: light meal, lots of water.
• In the air: dim cabin, eye mask, sleep starting 2 hours after takeoff.
• On landing: sunlight on your face for 20 minutes.
• At hotel: unpack, walk outside again, eat at local meal time.
• Naps: under 30 minutes only, before 4 p.m. local.
• Bedtime: local time, not body time.

Less stress, less jet lag

Half of jet lag is travel stress. A good flight tracker reduces a lot of that — knowing your bag carousel before deplaning, knowing the gate before sprinting, knowing the inbound aircraft is on time before you even leave for the airport. That's the everyday case for FlightyFlow.