"Anxiety Boosts Sense of Smell
ScienceDaily (Mar. 22, 2012) - Anxious people have a heightened sense of smell when it comes to sniffing out a threat, according to a new study by Elizabeth Krusemark and Wen Li from the University of Wisconsin-Madison in the US."
http://www.sciencedaily.com/releases/2012/03/120322100317.htm