Which is completely absurd because not only were many of these laws recently enacted, but their the efficacy of some rules is also questionable (most notably the calorie count law).
I wouldn't be surprised if most of the difference cited by this study was due to walking. I know that I've had to exert extra effort living in SF to be more active than I had to when I lived in NYC.
I wonder if there will be a follow-up study looking into the actual reasons why life expectancy is higher in NYC.