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Cyrano de Bergerac observed that “a large nose is the mark of a witty, courteous, affable, generous and liberal man.” We have found that individual noses, not how they look but rather how they function, indeed say a lot about a person. Each person expresses a nearly unique set of different olfactory receptor genes, and therefore may have unique olfactory perception. We developed a highly sensitive perceptual test we call the “olfactory fingerprint” that captures this variability. Individual olfactory fingerprints are therefore mirrors of individual olfactory genomes. We have demonstrated that such fingerprints predict genetic features linked to the olfactory system, such as aspects of immune regulation. Thus, a precise measure of olfactory perception reveals meaningful nonolfactory genetic information.

We detailed the algorithmic framework for the derivations used here in a manuscript published by Secundo et al., in the Proceedings of The National Academy of Sciences (USA), which can be freely downloaded here.

In this website we use data we have collected in the past where we modeled the link between olfactory fingerprints and personality traits or olfactory fingerprints and quality of romantic relationships. Note: we are improving these models all the time. If and when we make significant advances in our predictive powers, we will inform you of updated predictions in your "Nose Myself" and "Nose My Friends" tabs.