Long-distance travel is exciting, whether you’re heading off on holiday, travelling for business, or visiting family abroad. However, crossing multiple time zones can leave your body struggling to adjust to a new schedule. This common condition, known as jet lag, can affect your sleep, energy levels, concentration, mood, and even digestion.

While jet lag usually improves within a few days, there are several proven remedies that can help you recover faster and enjoy your trip from the moment you arrive.

If you’re planning international travel, it’s also worth preparing for your journey by seeking professional travel health advice. Our Travel Clinic Manchester provides expert guidance on travel vaccinations, malaria prevention, and personalised travel health recommendations before you travel.

What Is Jet Lag?

Jet lag is a temporary sleep disorder that occurs when your body’s internal clock (circadian rhythm) is out of sync with the local time at your destination. It most commonly happens after travelling across three or more time zones.

Your body relies on natural light and darkness to regulate when you feel awake and when you feel sleepy. When you suddenly change time zones, your internal clock needs time to adjust.

Common Symptoms of Jet Lag

Jet lag affects everyone differently, but common symptoms include:

• Difficulty falling asleep at night
• Waking up too early
• Daytime tiredness
• Reduced concentration
• Poor memory
• Headaches
• Mood changes or irritability
• Digestive discomfort
• Reduced appetite

The more time zones you cross, the more noticeable these symptoms may become.

Why Does Jet Lag Happen?

Your body follows a 24-hour biological cycle that regulates:

• Sleep
• Hormone production
• Body temperature
• Digestion
• Alertness

Rapid air travel disrupts this cycle because your internal clock remains on your departure time while your surroundings operate on a different schedule.

Travelling east generally causes more severe jet lag than travelling west because it is usually harder for the body to fall asleep earlier than to stay awake later.

Best Jet Lag Remedies

Although there is no instant cure, these practical remedies can significantly reduce the effects of jet lag.

1. Adjust Your Sleep Schedule Before You Travel

A few days before departure, gradually move your bedtime closer to your destination’s local time.

For eastbound travel:

• Go to bed 30–60 minutes earlier each night.

For westbound travel:

• Stay awake slightly later each evening.

Small adjustments before your trip make the transition much easier.

2. Stay Hydrated

Flying can cause dehydration due to the low humidity inside aircraft cabins.

Drink plenty of water before, during, and after your flight. Proper hydration may help reduce tiredness and headaches commonly associated with jet lag.

Try to avoid excessive:

• Alcohol
• Caffeinated drinks
• Sugary beverages

These can interfere with sleep and increase dehydration.

3. Get Plenty of Natural Light

Exposure to daylight is one of the most effective ways to reset your body clock.

After arriving:

• Spend time outdoors.
• Open curtains in the morning.
• Go for a short walk.

Morning sunlight is particularly helpful when travelling east, while evening light may help after travelling west.

4. Sleep According to Local Time

One of the biggest mistakes travellers make is sleeping according to their home time.

Instead:

• Eat meals based on local time.
• Sleep at local bedtime.
• Wake up at the local morning time.

Even if you feel tired, try to follow your destination’s schedule as soon as possible.

5. Take Short Naps

If you’re extremely tired after arrival, keep naps short.

Aim for:

• 20–30 minutes maximum

Long daytime naps can make it harder to fall asleep at night, delaying your recovery.

6. Eat Light, Balanced Meals

Heavy meals before bedtime may disrupt sleep.

Instead, choose:

• Fruit
• Vegetables
• Lean protein
• Whole grains

Maintaining regular meal times can also help your body adapt to the new time zone.

7. Stay Active

Light physical activity can improve circulation, reduce stiffness after flying, and help regulate sleep.

Good options include:

• Walking
• Gentle stretching
• Swimming
• Light gym sessions

Avoid intense exercise close to bedtime.

8. Limit Screen Time Before Bed

Phones, tablets, and laptops emit blue light, which can reduce the production of melatonin—the hormone responsible for sleep.

Try switching off electronic devices at least one hour before bedtime.

Reading a book or practising relaxation techniques may help you fall asleep more easily.

9. Consider Melatonin Carefully

Melatonin supplements may help some travellers adjust to new time zones.

However, they may not be suitable for everyone and should be used according to healthcare advice. If you’re unsure whether melatonin is appropriate for your journey, speak to a qualified healthcare professional before travelling.

10. Prepare Before You Fly

Good preparation often makes the biggest difference.

Before travelling:

• Check whether you need travel vaccinations.
• Review any prescription medicines.
• Pack essential medications in your hand luggage.
• Get enough sleep before departure.
• Plan your first day’s activities around your expected energy levels.

A well-prepared traveller is often less affected by travel-related health problems.

Who Is Most Likely to Experience Jet Lag?

Anyone can develop jet lag, but it tends to affect:

• Frequent business travellers
• Long-haul holidaymakers
• Cabin crew
• Athletes
• Older adults
• People with existing sleep disorders

Children may also experience jet lag, although they often adjust differently from adults.

Can Jet Lag Be Prevented?

Jet lag cannot always be completely prevented, especially during long-haul international travel.

However, planning ahead, staying hydrated, following local time, and getting regular exposure to daylight can significantly reduce its impact.

Most travellers begin feeling better within two to five days, depending on the number of time zones crossed.

Travel Health Advice Before You Fly

International travel often requires more preparation than simply packing your suitcase.

Depending on your destination, you may also need:

• Travel vaccinations
• Malaria prevention advice
• Destination-specific health guidance
• Advice about travelling with prescription medicines

Receiving professional travel health advice before departure can help reduce health risks during your trip and ensure you’re prepared for your destination.

If you’re travelling abroad and would like personalised travel health advice, book an appointment at our Travel Clinic Manchester. Our experienced pharmacy team can assess your travel plans, recommend appropriate vaccinations where required, and provide practical guidance to help you travel safely and confidently.

Conclusion

Jet lag is a common part of international travel, but it doesn’t have to spoil your trip. By preparing before you fly, staying hydrated, adjusting to local time quickly, and following healthy sleep habits, you can reduce its effects and recover more quickly.

If you’re travelling overseas, remember that protecting your health involves more than simply managing jet lag. Seeking expert travel health advice before departure can help ensure you have the right vaccinations, medications, and information for a safe and enjoyable journey.