BBC – There is a wealth of psychological and biological information stored in our scent, but for some reason we choose to ignore it. Body odour can reveal details about our health, and the presence of diseases (cholera smells sweet, acute diabetes like rotten apples). We might have a preference for certain smells, and there might be a genetic reason for that, but we don't act upon smells when choosing who we marry. Couples who had high HLA-dissimilarity had the highest levels of sexual satisfaction and the highest levels of desire to have children. The link between BO preference and genes spurred a fashion for T-shirt speed-dating and even "mail odour" services. But it would appear we do not make choices based on BO preference.
by William Park
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