Why do I get a cold every time I fly?

The culprit: Low cabin humidity At very low levels of humidity, the natural defense system of mucus in our noses and throats dries up and is crippled, creating a much more tolerant environment for germs to infect us.



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How to Avoid Catching a Cold on a Plane
  1. Pick Your Seat Wisely. Windows seats aren't just good for watching the sunset. ...
  2. Keep Your Hands Clean. ...
  3. Bring Your Own Water. ...
  4. Take Vitamin C.


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When you're traveling, it's likely you'll come into contact with many different people, areas, and surfaces. As we mentioned earlier, your immune system may already be weakened from the effects of traveling, making you more susceptible to bacteria and viruses.

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Low humidity on airplanes
Low humidity can cause the nasal passages to dry out and cause irritation in the nose and throat. On top of that, bacteria and viruses can survive longer in low-humidity environments, making it harder for your body to fight off any infections you might catch aboard a plane.

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Planes also have very little humidity and the dry air can irritate the mucous membranes of the throat.

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In fact, the Journal of Environmental Health Research says you're up to 100 times more likely to catch a cold on a plane than you are in your normal routine. Gross. Nothing puts a wrench in your holidays like coming down with a cold.

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If you get sick while traveling, it will most likely be a stomach virus like norovirus, a cold or the flu. Usually, treatment involves drinking lots of water, rest and taking care of your symptoms. But it's also a good idea to keep an eye out for signs of infection such as high fever, chills, headache and fatigue.

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This includes those with cardiac failure, recent myocardial infarction (heart attack) or stroke, angina (chest pain) at rest, heart rate or rhythm disorders, uncontrolled arterial hypertension, severe anemia, sickle-cell anemia, acute mental disorders, epilepsy, and any serious or contagious diseases.

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I recommend all my patients take immune-boosting supplements for three to five days leading up to travel and continue to do so throughout their trip, she shared. Specifically vitamin C, vitamin D, zinc, and probiotics.

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Jet belly: (noun) the bloated state in which your stomach inflates post-flight. Also, a very unpleasant feeling. May also make you look like you're 3 months pregnant. So how does one prevent this jet belly? Well, it all depends on what you eat on the plane.

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Treat congestion before your trip
If you're congested from allergies or an upper respiratory infection, it's important to do what you can to resolve the congestion before you fly. Common treatments for congestion include antihistamines, decongestants, and nasal steroid sprays.

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