> Doesn't that mean there is a causative effect, or are they saying it just a correlation? Unless causality is clearly articulated, it never should be assumed.

> Doesn't that mean there is a causative effect, or are they saying it just a correlation? Unless causality is clearly articulated, it never should be assumed. Also, it never would be stated if there was not statistically significant data supporting it - keeping in mind this is a Time article and not the original source [0] so you're dependent on the writer knowing what they're talking about as well. [0]: http://ajh.oxfordjournals.org/content/early/2014/09/03/ajh.hpu164 http://ajh.oxfordjournals.org/content/early/2014/09/03/ajh.h...