What happens to your body during a flight?

Taking Flight: What Happens to Your Body When You're Up in the Air

Flying is a marvel of modern engineering, whisking us across continents in mere hours. But while we relax in our seats, reading a book or watching a movie, our bodies are quietly undergoing a series of changes in response to the unique environment of an airplane cabin. Understanding these changes can help you prepare for your flight and arrive at your destination feeling refreshed and ready to go.

One of the most significant challenges our bodies face during flight is the incredibly dry air. You might not realize it, but the air circulating within an airplane cabin is often drier than the Sahara Desert! This extreme aridity stems from the way air is pumped into the plane. Air from outside, at high altitudes, contains very little moisture. Even after being compressed and warmed for our comfort, its humidity levels remain remarkably low, typically hovering around 10-20%.

So, what does this dry air do to your body? The immediate impact is dehydration. Your skin, a natural barrier against the environment, starts to lose moisture. This can manifest as dry, itchy skin, chapped lips, and even exacerbate conditions like eczema. But the effects extend beyond the surface.

Dehydration also affects our internal systems. It can contribute to a feeling of fatigue, making you feel sluggish and tired even after just a short flight. Headaches are another common complaint, as the lack of fluids impacts blood flow and can trigger tension. Even your cognitive function can suffer. Dehydration can impair concentration and make it harder to focus, which can be particularly frustrating if you're trying to work or read.

Beyond the immediate discomfort, chronic dehydration can contribute to more significant health issues over time. However, in the short term, the in-flight dehydration primarily leads to feeling unwell and less than your best.

The good news is that combating in-flight dehydration is relatively simple: hydration is key! Before you even board the plane, make sure you're well-hydrated. Drink plenty of water in the days leading up to your trip. During the flight itself, ditch the sugary sodas and alcoholic beverages (which can actually dehydrate you further) and opt for water. Carry a refillable water bottle and ask the flight attendants to fill it regularly. Don't be afraid to ask for multiple cups of water throughout the flight; they are there to help.

Consider also packing a travel-sized moisturizer for your skin and lip balm for your lips to combat the external dryness. By taking these proactive steps, you can significantly mitigate the dehydrating effects of flying and arrive at your destination feeling refreshed, alert, and ready to enjoy your trip. So, next time you're taking to the skies, remember to prioritize hydration – your body will thank you for it.