Earlier quoted context omitted.
The skin cancer + flight attendant connection has to be due to white people working in the industry. People tend to fly to places with plenty of sun and warm climates. Australia's skin cancer rates are also very high, although not so much among the aboriginal population.
I would imagine it's because of the increased radiation you receive during a flight. For one flight, it's negligible, but if it's your job to be in the stratosphere for 20+ hours a shift, year round, it will probably start to add up. It would be like spending all your work life on the beach.
This is where flight attendants spend their non-work life :-)
The radiation from the flight could be a factor of course; but being from Norway myself, and getting burned like a cooked lobster every time I go to Spain etc. I can't imagine that stuff being healthy to do regularly (or perhaps at all).