1. Nicholas Dow on Bicycle helmet laws lead to 20% decrease in deaths and injuries, researchers find
    Nicholas Dow Nicholas Dow Australia says:
    May 24, 2013 at 11:01 PM

    But did they allow for the fact that helmet laws reduce the amount of cycling? That would seem to be a big omission.  Of course observational studies should never be relied on as they don't prove causality, and making recommendations for laws that discourage healthy excercise should never be made on such flimsy evidence

    Reply
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