3 ms·Not the most unbiased source, I'd say. And no link to the research.by rimliu 7y agoNot the most unbiased source, I'd say. And no link to the research.nradov 7y agoHere's a link to research. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5179322/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5179322/rimliu 7y agoIt's actually an interesting read. But if you read it you will see that one must be careful about what to conclude from that.