http://www.washingtonpost.com/news/m...-by-body-odor/
Conservatives and liberals do not smell the same to potential mates. According to a study published this month in the American Journal of Political Science, people can literally sniff out ideology — and this may explain why so many couples share political beliefs. Or, as the study’s title says, “Assortative Mating on Ideology Could Operate Through Olfactory Cues.”

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