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Comment by lobo_tuerto | Hacker News Reader

I'm going to go out on a limb here, but could this be connected to what some people call the _aura_?

Or the reason why you might dislike or like someone when you are around him/her?

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?&GWVersio...

3 - http://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=ref...

4 - http://www.nature.com/news/2001/010307/full/news010308-10.ht...

"Aura" is an ill-defined term on its own; you've got everything from people claiming to see literally-visible colors emanating from a person to vague senses of something. (No judgment implied here, this is just the definition of the word I'm discussing.)

As for why you might dislike people when you are around them, it seems like we, err, don't really have much of a mystery there? I mean, I know what you mean, but there's a lot of well-established human body language and we often pick up on it without realizing it consciously. I don't think we need to hypothesize "something something bacterial footprint" when we've got that already.

I thought the aura is the light captured around the human body with kirlian photography

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