How bad is flying for your health?

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.



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The effects of flying on the human body vary from mild skin dryness to more severe problems like deafness. Flying increases the risk of catching a cold, dehydration, aging faster, reduced alertness, increased risk of diseases like cancer, fuzzy thinking, and many others.

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The air pressure while flying increases the risk of blood clots forming, which is not ideal. Heart complications: If you've suffered a heart attack, stroke, cardiac failure or chest pain while at rest, flying should wait. The lower oxygen levels, increased air pressure, high altitude and more could affect your health.

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5 Ways To Limit Your Radiation Exposure In Long Haul Flights
  1. Use a laptop shield. ...
  2. Get the right headset.
  3. Use a protective wallet case for your smartphone. ...
  4. Pregnant passengers should wear a protective band. ...
  5. Use anti-radiation blankets for infants and kids.


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The air on a plane contains less oxygen than the air we normally breathe in. This leads to lower levels of oxygen in the blood. If you do not have a lung condition, the drop in oxygen is not enough that you would feel the difference.

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Air travel increases the risk of developing blood clots in the veins of the legs, which can then enter the bloodstream and block an artery in the lungs, a condition called pulmonary embolism. In some cases, the opening can allow the blood clot to enter the arteries of the brain, causing a stroke.

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Takeoff and landing are widely considered the most dangerous parts of a flight.

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Remember that anything over 6 hours flying time is considered long haul, but flights of longer than 10 hours are not uncommon either. One important thing to remember is to keep your seat belt fastened at all times in case of unexpected turbulence.

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While many love the experience of travelling by flight, it can be a nightmare for others who often complain of experiencing jet lag, nausea, memory loss, or brain fog post their journey. Some studies show that even relatively mild levels of hypoxia (deficiency in oxygen) can alter our ability to think clearly.

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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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It is not recommended to fly with acute intracranial hypertension because the conditions in the plane can worsen your condition and cause excruciating pain. If you have chronic or benign intracranial hypertension, you might be able to fly if your condition is under control.

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Low air pressure during air travel also decreases the amount of oxygen in the air. This effect is modest and generally not noticeable for healthy travelers. For patients with significant lung disease, a small decrease in available oxygen can cause significant symptoms, especially with exercise.

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The air on a plane contains less oxygen than the air we normally breathe in. This leads to lower levels of oxygen in the blood. If you do not have a lung condition, the drop in oxygen is not enough that you would feel the difference.

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The only oxygen equipment allowed on an airplane is the portable oxygen concentrator (POC). If you need oxygen in flight, you must take a portable oxygen concentrator with you, and , you must let your airline know ahead of time. They may require a doctor's letter to verify the need for the POC on the plane.

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But there are some aspects of flying that can be problematic when you have certain heart conditions. When you have heart disease, air flight can lead to problems due to the confined space, low oxygen concentration, dehydration, air pressure, high altitude, and the potential for increased stress.

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

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Blood clots can sometimes form in your legs during air travel because you are immobile for long periods of time, often sitting in cramped spaces with little leg room. The clinical term for this type of blood clot is deep vein thrombosis (DVT). The longer the flight, the more at risk you are for developing a clot.

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Flying exposes you to large amounts of radiation. A transcontinental flight at 30,000 feet exposes you to 1,000 times the amount of you receive from security scanner devices. Flying at night can reduce that exposure by 99 percent, but pilots often don't get to fly just at night.

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Nerves and tension can cause muscles to tense, resulting in pain following a flight.

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