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    • I measured cabin radiation on a recent European flight using my handy compact Geiger counter, and it was around 3 microsieverts/h (background level in open country with non-volcanic soil: around 0. 05 microsieverts/h). Of course airline personnel are aware of this and I believe they sign a waiver to accept these high-ish levels. But the companies certainly do not put this in their alluring adverts. And it’s one thing to fly a couple of hours. What about those long intercontinental flights?

      • I used to take long haul flights every six weeks from South Africa (far from many places) to Europe, US, Asia, Australia for work. All were 10+ hours. After 13 years of this my body was kaput and I quit. I think that jet lag is perhaps more about radiation exposure than time zone changes. There is some non mainstream research that shows niacin as helping the body to detox more generally (https://articles.mercola.com/sites/articles/archive/2014/05/04/detoxification-program.aspx) and more specifically from radiation exposure. Send me a private message if you would like more info on this.

      • Dana, I have been thinking of getting a Geiger counter. Do you have any recommendation on brands.? Small is good.