It's been suggested by at least one study[1] that we prefer our potential mates' odors if their own immune system is different enough from our own. One might in

It's been suggested by at least one study[1] that we prefer our potential mates' odors if their own immune system is different enough from our own. One might indeed be translating 'odor' into 'aura' subconsciously. I suspect OP my explain how that odor is transmitted from the immune system to the outer world. Further elaboration and maybe disagreement at [4] 1 - Wedekind,C., Seebeck, T., Bettens, F. & Paepke, A. J.MHC-dependent mate preferences in humans. Proceedings of the Royal Society B 260,245 - 2491995. | ISI [2] | ChemPort [3] | 2 - http://links.isiglobalnet2.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=Nature&SrcApp=Nature&DestLinkType=FullRecord&KeyUT=A1995RJ57600002&DestApp=WOS_CPL http://links.isiglobalnet2.com/gateway/Gateway.cgi?&GWVersio... 3 - http://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1:STN:280:ByqA2Mjjs1c%3D&pissn=9999-9999&pyear=2001&md5=8ef761887eeb6ef29e9dd933802f6568 http://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=ref... 4 - http://www.nature.com/news/2001/010307/full/news010308-10.html#B2 http://www.nature.com/news/2001/010307/full/news010308-10.ht...