Interestingly my Grandfather suffered from skin cancer, throat cancer and lung cancer he was known to blame the latter two on smoking 60 plus rothmans a day but the skin cancer he felt was a result of cockpit uv and sunbathing on stopovers.He was a 707 Captain in the days when health and safety was not all it is today and looking after yourself meant sitting at the pool!It would be easy to blame it all on sunbathing but he only managed to get to 47 before the larynx cancer got him.