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November 15, 2016 08:00 am

Chemical Traces On Your Phone Reveal Your Lifestyle, Scientists Say

An anonymous reader quotes a report from The Guardian: Scientists say they can deduce the lifestyle of an individual, down to the kind of grooming products they use, food they eat and medications they take, from chemicals found on the surface of their mobile phone. Experts say analysis of someone's phone could be a boon both to healthcare professionals, and the police. "You can narrow down male versus female; if you then figure out they use sunscreen then you pick out the [people] that tend to be outdoorsy -- so all these little clues can sort of narrow down the search space of candidate people for an investigator," said Pieter Dorrestein, co-author of the research from the University of California, San Diego. Writing in the Proceedings of the National Academy of Sciences, researchers from the U.S. and Germany describe how they swabbed the mobile phone and right hand of 39 individuals and analyzed the samples using the highly sensitive technique of mass spectrometry. The results revealed that each person had a distinct "signature" set of chemicals on their hands which distinguished them from each other. What's more, these chemicals partially overlapped with those on their phones, allowing the devices to be distinguished from each other, and matched to their owners. Analysis of the chemical traces using a reference database allowed the team to match the chemicals to known substances or their relatives to reveal tell-tale clues from each individual's life -- from whether they use hair-loss treatments to whether they are taking antidepressants.

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