Some recent studies do in fact suggest that traveling, especially flying, can have a negative effect on your immune system, thus making it easier for you to get sick.
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The cramped conditions and long periods of being less active on a flight can cause pain, stiffness or swelling of your legs. Being less active can lead to slow blood flow in your veins which increases your risk of developing a blood clot, known as deep vein thrombosis (DVT). DVTs most commonly form in the legs.
There are factors that can make people more prone to getting sick from flying, experts say. The air on planes is low in humidity, which can irritate mucosal membranes in the nose and mouth and skin, leading passengers to scratch and create tiny tears.
The culprit: Low cabin humidityAt 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.
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.
The main aspect of in-flight health that most of us will encounter is tiredness and changes to circadian rhythms. Flying often involves getting up at unsociable hours, inadequate sleep and messing up the body clock — all of which leave us more susceptible to being hit nastily by any bugs that may be floating about.
Feeling unwell directly after a flight is often the cause of low humidity. Planes have a different atmospheric pressure than we are used to, which can cause the nasal passages to dry, leading to symptoms resembling flu.
The main aspect of in-flight health that most of us will encounter is tiredness and changes to circadian rhythms. Flying often involves getting up at unsociable hours, inadequate sleep and messing up the body clock — all of which leave us more susceptible to being hit nastily by any bugs that may be floating about.
Our immune systems are sensitive to fluctuations in hormone levels, and when things are kept in delicate balances, the emotional and physical exertions of flying can be enough to trigger immune responses you don't want.
Air travelAirplanes can be breeding grounds for bacteria and viruses, from cramped conditions to the low humidity that characterizes the air circulating on board. Low humidity can dry out your nasal passages and irritate your throat.
Airplane passengers have an 80% chance of getting sick on a flight if they sit in the wrong spot, scientists have found. Data scientists traveled across the US on 10 transcontinental flights to investigate your risk of getting sick on a plane.