Comment by rsynnott
> but if that's true why has nobody proved it?
It'd be extremely difficult to study properly; there _have_ been studies, giving answers in both directions, but they're very easy to poke holes in due to confounding factors.
> but if that's true why has nobody proved it?
It'd be extremely difficult to study properly; there _have_ been studies, giving answers in both directions, but they're very easy to poke holes in due to confounding factors.