According to this study  recently published in the Analytical and Bioanalytical Chemistry journal, a team of  Spanish and British scientists  have found a way to trace your travels by testing your hair by using a laser-ablation technique. This technique is able to detect variations in the sulphur isotopes of a single hair strand over time.

During the study, researchers collected hair samples from three volunteers, two of whom were permanent United Kingdom residents while the third had spent the previous 6 months travelling through Croatia, Austria, and Australia.  Results of testing  showed that the traveller’s hair strand had considerable variations in the sulfur isotopes while hair strands from the two home-bound U.K. residents had minimal to no changes.

Interesting results that could have huge relevance for governmental agencies who are interested in tracing the lifestyles of international criminals and terror suspects.

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Post from: Healthbolt