Breath / Haleine

Breath analysis was proposed and (virtually) spoofed a long time ago (1997) in Alien : ressurection.
L'analyse de l'haleine fut proposée dans Alien : résurrection", et aussi sec trompé avec du spray. Et voilà, quelqu'un a vérifié que ça pouvait potentiellement marcher!

• (2013) Human Breath Analysis May Support the Existence of Individual Metabolic Phenotypes / Pablo Martinez-Lozano Sinues, Malcolm Kohler, Renato Zenobi / ETH Zurich, Department of Chemistry and Applied Biosciences, Zurich, Switzerland, (local copy of the paper).
  
  (figure: Projection of the 193 breath mass spectra onto the first three dimensions obtained by supervised Kruskal-Wallis/PCA/CA. Grouping according to breath donor (represented by different colors and symbols) becomes apparent. The inset displays the blind classification results upon a cross-validation (average of 500 Monte Carlo repartitions). The overall breath-mass spectrum to breath-donor recognition score was 76%.)