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Val is Director of the Hygiene Centre, a multidisciplinary group dedicated to improving hygiene, sanitation and water in households and schools through enhancing knowledge.

She is trained in engineering, epidemiology and anthropology and has a particular interest in human behaviour, especially from an evolutionary perspective.

She is the author of Don't Look, Don't Touch: The Science Behind Revulsion.


  • –present
    Reader in Hygiene, London School of Hygiene and Tropical Medicine


  • 2011
    Disgust as an adaptive system for disease avoidance behaviour., Philos Trans R Soc Lond B Biol Sci.