My point in the above post is supported by the following kinds of evidence:
http://www.sciencedaily.com/releases/2007/08/070801161507.htm
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=502446
http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch =6138545&ordinalpos=2&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum |