I saw this story and was alarmed. Why are there so many incidences of cancer in San Francisco for a relatively small population?
http://www.ucsf.edu/news/2016/11/404931/broad-new-partnership-launches-plan-reduce-cancer-san-francisco
Is it something to do with the old construction, or is it the air, or is it lifestyle? I was under the impression that most San Franciscans (including myself) lead an active healthy life(style).