How to Beat Jet Lag: 12 Science-Backed Tips That Actually Work
You’ve planned the perfect trip, landed somewhere incredible, and all you want to do is sleep at 3 PM and lie awake at 3 AM. Jet lag is what happens when your body’s internal clock is still running on home time while the sun is telling it something completely different. The good news is that learning how to beat jet lag is mostly about one thing: helping your body clock shift faster.
Here are 12 tips that work, organized by when to use them.
What Causes Jet Lag?
Your body runs on a roughly 24-hour circadian rhythm that controls when you feel sleepy, hungry, and alert. The strongest signal that sets this clock is light. When you cross several time zones quickly, your internal clock and the local clock fall out of sync, and it takes time for your body to catch up.
Common symptoms include trouble sleeping, daytime fatigue, poor concentration, irritability, and an upset stomach. Many people find flying east harder than flying west, because it’s generally easier to stay up later than to fall asleep earlier.
Before Your Flight
1. Shift your sleep schedule a few days early
For a big time difference, start moving your bedtime 30 to 60 minutes per day toward your destination’s time zone in the days before you leave. Even a partial shift helps.
2. Arrive well rested
Starting a trip sleep-deprived makes jet lag far worse. Avoid the classic last-night packing marathon. Pack a day or two early using our carry-on packing list.
3. Choose your flight time wisely
If you have the option, an arrival in the late afternoon or early evening makes it easier to stay awake until a reasonable local bedtime and then sleep through the night.
During Your Flight
4. Set your watch to destination time
As soon as you board, switch your phone and watch to the local time where you’re going. Then eat, sleep, and stay awake based on that time as much as you can.
5. Sleep strategically
If it’s nighttime at your destination, try to sleep. An eye mask, earplugs or noise-cancelling headphones, and a neck pillow make a real difference. If it’s daytime there, try to stay awake.
6. Stay hydrated and go easy on alcohol
Cabin air is dry, and dehydration makes fatigue and headaches worse. Alcohol might help you nod off but tends to make sleep lighter and more broken. Drink water regularly throughout the flight.
7. Limit caffeine to the morning (destination time)
Caffeine can help you stay alert, but its effects can last for hours. Use it early in your destination’s day and avoid it in the afternoon and evening.
After You Land
8. Get daylight at the right time
This is the most powerful tool you have. Morning light generally helps shift your body clock earlier (useful after flying east), while evening light helps shift it later (useful after flying west). Get outside, take a walk, and let the sun do its job.
9. Stay up until a normal local bedtime
On the first day, resist a long afternoon nap. If you really need one, keep it to 20 to 30 minutes and set an alarm. Push through to at least 9 PM local time.
10. Eat on local time
Meal timing also nudges your body clock. Eat breakfast, lunch, and dinner at normal local times, even if you’re not very hungry.
11. Move your body
A gentle walk or light exercise in daylight helps you stay awake and improves sleep that night. Exploring your new neighborhood on foot counts.
12. Consider melatonin, carefully
Some travelers use low-dose melatonin around local bedtime to help shift their sleep. It isn’t right for everyone, so talk to a doctor or pharmacist first, especially if you take other medications.
How Long Does Jet Lag Last?
A common rule of thumb is that it takes around a day to adjust for each time zone crossed, though this varies a lot from person to person. Following the tips above can shorten that noticeably.
Plan Your Itinerary Around Jet Lag
Don’t schedule your most important activity, like an expensive tour or a special dinner, for your first day after a long-haul flight. Keep day one light: a walk, a good meal, an early night. Our guide on how to create a travel itinerary explains how to build in recovery time.
And remember that jet lag has a second act. Coming home can hit just as hard, which is why we strongly recommend a buffer day. Read why you need rest after a vacation for how to recover when you’re back.
Frequently Asked Questions
Is jet lag worse flying east or west?
Many people find flying east harder, because it requires your body to fall asleep earlier than it’s used to.
Should I sleep when I arrive?
If you arrive in the morning, try to stay awake until evening. A short nap of 20 to 30 minutes is fine if you really need it, but long naps make the first night much harder.
Does jet lag happen on short flights?
Jet lag is caused by crossing time zones, not by flight length. A long north-south flight in the same time zone won’t cause jet lag, though it can still leave you tired.
Land Ready to Explore
Jet lag doesn’t have to steal the first days of your trip. Control your light exposure, eat and sleep on local time, and go easy on yourself on day one. For more ways to make travel smoother, browse our travel tips or read our step-by-step guide on how to plan a trip.