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You Can Get Seriously Dehydrated While Flying: Tips from a Dietitian

Arany Inez3 min read
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You Can Get Seriously Dehydrated While Flying: Tips from a Dietitian — Leisure
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Travel is an incredible adventure, full of new experiences and exciting moments. But when you’re heading to your next destination—especially by plane—it’s key to remember that your body faces some serious challenges. Flying isn’t just about exploring new places; it’s also one of the toughest journeys your body has to handle.

The Challenges of Low Humidity

The environment inside an airplane cabin is very different from what we’re used to every day. One of the biggest differences is the extremely low humidity—usually only around 10-20%. That’s way lower than the 30-60% humidity our skin and mucous membranes normally enjoy at ground level. This dry air makes staying hydrated a real challenge and can quickly lead to dehydration if you don’t consciously drink enough fluids.

Dehydration symptoms during a flight can vary and show up fast. Common signs include headaches, fatigue, dry skin and eyes, and trouble concentrating. These can be especially tough on long flights when you want to keep your energy and good mood intact.

Keeping well hydrated isn’t just about feeling good physically—it also helps keep your mind sharp and lets you fully enjoy every moment of your trip. That’s why dietitians stress the importance of planning ahead to boost your fluid intake while flying.

Tips for Staying Hydrated

1. Water, water, and more water: The simplest and most effective way to stay hydrated is to sip water regularly. Aim to take small sips at least every 30 minutes to avoid dehydration on long flights.

2. Skip alcohol and caffeine: Both can dehydrate you because they act as diuretics. Try to resist the temptation to drink alcohol on the plane and opt for non-alcoholic beverages instead.

3. Use a hydrating spray or cream: Your skin needs love too! Low humidity can dry it out quickly. A light moisturizer or facial mist can ease tightness and keep your skin feeling soft.

Source: istockphoto.com

How Nutrients Help You Stay Hydrated

Besides drinking enough fluids, what you eat also plays a big role in keeping you hydrated. Foods with high water content—like cucumber, watermelon, and celery—help replenish fluids too. Make sure to choose these hydrating foods before and during your trip.

Dehydration on a plane isn’t just uncomfortable—it can also affect your health over time. Ignoring hydration can weaken your immune system and increase your risk of infections.

Dietitians and doctors agree: every traveler should have a hydration plan to enjoy a trip that’s not only full of great memories but also keeps you feeling your best.

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