Why does my heart rate increase when I fly?

Airplane Travel and Blood Oxygen Saturation Typically, in-cabin air pressure is equivalent to that seen at 5000 to 8000 ft. Local hypoxia causes vasodilation (decrease in blood pressure) and increased capillary permeability, as well as increased ventilatory effort and heart rate.



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Cardiac arrhythmia. Hypoxia and increased sympathetic activation may increase the risk of cardiac arrhythmias at high altitude2; however, the incidence of significant arrhythmias during air travel is rare.

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In fact, most people with heart conditions should be fine to travel, just as long as they feel well and their GP agrees their condition is stable and under control, because the last thing you want is to run into any issues whilst you should be having a relaxing time on holiday.

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Unstable heart disease is associated with a higher risk of adverse events due to flying, and you may need to avoid flying, at least temporarily, until your condition is well controlled. People with pacemakers or implantable defibrillators can fly safely.

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According to medical research, travelling with arrhythmia is perfectly safe, as long as you are either suffering from no symptoms or you have been deemed clinically stable by a medical professional.

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recent operation or injury where trapped air or gas may be present in the body (e.g. stomach ,bowel, eyes, face, brain) severe long term diseases that affect your breathing. breathlessness at rest. unresolved pneumothorax (punctured lung)

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Your blood pressure could rise The higher you are in the sky, the less oxygen your body will carry, and less oxygen means higher blood pressure. If you typically have a regular blood pressure or even a low blood pressure, this increase will likely have no effect on you.

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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).

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Flying produces an inconceivable amount of C02 emissions and air pollution. For those that don't know, CO2 (carbon dioxide) is one of the key greenhouse gases that contribute to global warming – flying produces a whole lot of it.

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Long-term high-altitude exposure does not increase the incidence of atrial fibrillation associated with organic heart diseases. High Altitude Medicine & Biology. 2021; doi:10.1089/ham. 2020.0228.

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If your blood pressure is higher than 120 over 80, seek medical advice before you travel.

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Sitting down in a tight seat for 13+ hours can sometimes lead to circulation issues, including swelling in the feet. According to The Healthy, the chance of your body forming blood clots increases when blood isn't moving correctly, such as when onboard a long-haul flight.

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Beta-blockers are typically used to provide short-term relief of physical symptoms caused by anxiety. Most people who take beta-blockers for anxiety take the medication as needed before an anxiety-inducing event, such as a plane flight, public speaking engagement, or medical procedure.

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Myocarditis causes a weakening of the heart, which makes it unable to pump enough blood to the rest of the body and increases the probability of blood clots occurring in the heart, leading to a stroke or a heart attack. The act of flying and the conditions inside a commercial plane cabin further exacerbate these risks.

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