Flying airplanes was more dangerous to health.

Under the latter, conducted by specialists of the National Aerospace Agency of the USA, the experiment, it was found that when the flight on a cruise ship, passengers get a large dose of radiation than it did a decade ago. However, any risk to the life and health of people, this is not because the doses are still very small, however, the fact that the human body still gets more exposure than it was a decade ago.

In addition, it is important to also take into account the fact that the dose of radiation increases with the height of flight, so flights on aircraft with little practical ceiling, yet are safer.