The Truth About Staying Healthy During Air Travel

Whether you're heading off on a romantic vacation or visiting family over the summer, chances are you'll be flying. While flying is generally a safe way to travel, there are certain health considerations to keep in mind to ensure your journey remains comfortable and safe.

Air travel exposes passengers to a pressurized cabin environment, typically set at an altitude equivalent of 6,000 to 8,000 feet. This reduced oxygen level can pose challenges for individuals with certain health conditions, such as anemia, lung issues, stroke history, heart disease, or heart failure. The dry cabin air, with humidity levels often between 5% and 25%, can cause dehydration, dry eyes, and dry cough. To combat this, travelers should stay well-hydrated by carrying water bottles and avoiding excessive caffeine or alcohol intake.

The low humidity also means a higher risk of germ exposure, though modern aircraft filtration systems usually keep the air clean. Still, it’s wise to have tissues or masks on hand, especially if you're feeling unwell or seated near sick passengers.

Long flights increase the risk of deep vein thrombosis (DVT), harmful blood clots that form in the legs and can travel to the lungs. To minimize this risk, wearing compression socks, staying hydrated, avoiding crossing legs, and regularly moving or stretching are recommended. Buckling seatbelts during turbulence enhances safety.

Travel-related stress and fatigue can take a toll on mental health. For reducing anxiety, deep breathing, listening to calming music, and staying patient can be helpful. Avoiding alcohol also helps manage stress and dehydration.

Pre-flight preparations are vital. Check with your healthcare provider if you're fit to fly, especially if you have existing health conditions. Carry all necessary medications and medical devices, and keep a list of your medicines. People with heart rhythm issues should carry a recent ECG, and those with pacemakers or defibrillators should have their device information accessible. Up-to-date vaccinations are essential when traveling abroad.

Sleep disruption is common during travel and can impact heart health. Try to adapt to new time zones by exposing yourself to natural light and maintaining your usual sleep routines. Avoid alcohol before sleep, as it can hinder restful sleep.

Despite its challenges, air travel offers wonderful opportunities for connection and exploration. Being prepared and aware of potential health risks can help you enjoy your journey safely and comfortably.

Source: https://medicalxpress.com/news/2025-06-stay-healthy-fly-plane-truth.html