Can being on a plane give you a cold?

Taking Flight and Catching Fright: Why Airplanes Seem to Breed Colds

We’ve all been there. You step off a plane, finally reaching your long-awaited destination, only to be greeted by a tickle in your throat and the unmistakable feeling of a cold creeping in. The question lingers in the air: did that flight just make me sick? While it’s not as simple as the plane directly causing a cold, the environment within an airplane cabin can certainly contribute to your susceptibility.

The culprit isn’t necessarily the mythical “recirculated air” we’ve all heard so much about. Modern aircraft are actually equipped with sophisticated filtration systems, often using HEPA filters, which are highly effective at removing bacteria and viruses. So why the persistent association with airborne illness?

The real problem lies in the combination of several factors that are unique to the flying experience. Think about it:

• Close Proximity: Airplane cabins are essentially confined spaces, packing a large number of people into a relatively small area. This close proximity increases the likelihood of encountering someone who is already carrying a virus, even if they’re not showing symptoms yet. A simple cough, sneeze, or even just breathing can spread germs quickly in such a concentrated environment.
• Low Humidity: The air inside a plane is notoriously dry. This is because airplanes circulate dry air from outside the plane, dehumidifying the cabin. This lack of moisture can dry out your nasal passages, which are your body’s first line of defense against airborne pathogens. Dry nasal passages are more vulnerable to viral invasion, making it easier for germs to take hold.
• Stress and Fatigue: Travel itself can be incredibly stressful and tiring. From navigating airports to dealing with delays and time zone changes, your body is often under significant strain. This stress can weaken your immune system, making you more susceptible to illness.
• Prolonged Exposure: Unlike a short bus ride, flights often involve hours of exposure to the aforementioned factors. The longer you spend in the confined, dry, and potentially germ-laden environment of an airplane, the greater the chance of encountering and contracting an illness.

While the common cold is the most frequent flyer, some travelers experience unusual reactions. Skin rashes accompanied by cold-like symptoms, for instance, could indicate an atypical response to the cabin environment, potentially linked to sensitivities to cleaning agents or variations in air pressure. These reactions highlight the complex and individual impact that airplane cabins can have on our immune systems.

So, what can you do to minimize your risk of catching a cold on a plane? Here are a few preventative measures:

• Hydrate: Drink plenty of water before, during, and after your flight to keep your nasal passages moist.
• Use Nasal Spray: Consider using a saline nasal spray to further combat dryness and help keep your nasal passages clear.
• Wash Your Hands Frequently: Regular handwashing with soap and water or using hand sanitizer is crucial, especially after touching surfaces in the airplane.
• Boost Your Immune System: Prioritize getting enough sleep in the days leading up to your flight and consider taking vitamin C or other immune-boosting supplements.
• Consider a Mask: While not mandatory on most flights anymore, wearing a mask can provide an extra layer of protection against airborne germs.

While you can’t completely eliminate the risk of catching a cold on a plane, taking proactive steps to protect your health can significantly reduce your chances of landing with a stuffy nose and a box of tissues. Happy (and healthy) travels!