Just a nitpick, but I would definitely question the scientific validity of anything claiming to "prove" anything. Although the studies linked in the article are legitimate, the author probably does not know much about science, and simply read the abstracts of the studies and paraphrased the results.
Scientific studies do not prove hypotheses, but are meant to support hypotheses via positive correlation and informed deduction. Just because a study has results that support its hypothesis, does not mean it has "proven" its hypothesis.
Last edited by laciemn; 01-29-2014 at 12:18 PM.