My first thought: Oh well, such is life.
It seems like every other thing on this planet causes cancer and it seriously has gotten to the point where keeping track of them all would take up all your time...and probably cause cancer too. I suppose I'm at risk cause I just recently finished O&G and spent many lovely nights on the labour ward and pretty soon I have EM which is another all night gig. Of course, what can we do? Night time work is an absolute neccessity and it's unlikely that we'll ever be able to have dedicated night people who never work days and never have to interrupt their circadian rhythm. On the plus side, night shift people could make a case for "hazard pay" due to their increased cancer risk.