Is it dangerous to fly a plane often?

For some, frequent flights with breakfast in Paris and lunch in New York seem to be a glamorous lifestyle, but for the category of regular travelers, such as diplomats, businessmen, crew members, and the same travel bloggers, such movements are a serious risk factor.
What you need to know about radiation, jetlag and numb legs to avoid health problems, if your life is connected with airports more than with the office in the office.

Is radiation terrible?
Every time you fly at a height of 9 km from one continent to another, you are exposed to natural radiation (solar and cosmic): the atmosphere becomes thinner and the impact is slightly larger than on the ground. For example, for those who fly 10-12 times a year along the Moscow-Krasnoyarsk route, the radiation dose will be 480 microsieverts (µSv). This is more than the dose for X-ray examination of the chest 200 µSv, but still much less dangerous for the health of 400000 µSv.

Is such a dose of radiation dangerous?
The International Commission on Radiological Protection recommends that the annual radiation dose should not exceed 1000 µSv per year.
Therefore, no, not dangerous - if only flights are your job.

Does the number of flights matter?
Yes.
Flying a couple of times a year will not bring serious threats to your health. A dozen or more flights per year (that is, an average of one or two flights per month) is already a reason to think: the health risks of chronic diseases increase. At the same time, for the crew, the radiation exposure can be comparable to the exposure that is received by employees of nuclear power plants. According to some studies, they also increase the risk of melanoma and breast cancer - however, there is still no definite answer, whether it is caused only by flights or a combination with other risk factors.

Time zones, like a time bomb, but not for everyone
Changing time zones and daily rhythms - frequent jet lag violates the biological processes in our body, up to the "turn off" of genes that affect aging (according to research) and the immune system. And this can be a much more serious threat to health than cosmic radiation: the constant disruption of sleep rhythms causes our body to become confused.As a result, the risk of heart attack, stroke and diseases of the reproductive system increases, memory deteriorates.
Already starting to worry?
Again, if you fly a couple of times a year, there is no reason to worry. Just read the tips on how to deal with the jetlag. The most important thing is that after changing time zones, do not immediately rush into the thick of things, but allow yourself to sleep.

What is really worth thinking about
Short-term risks: thrombosis and all sorts of infectious sores.
With long flights, the risk of thrombosis is increased by 4 times - that is, you do not even need to fly a dozen times a year to earn a blockage of veins. For prevention, drink enough water and do gymnastics for the legs during the flight. But in order to be faithful, it is advisable to check with the doctor if you have any serious problems with the vessels before starting the journey. Perhaps you should start taking medications.
In second place - infectious diseases. The enclosed space of the cabin of the aircraft is the best way to promote the spread of viruses and infections among passengers whose immune system is weakened by flight.

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