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A taboo-busting romp through the shame, stink, and strange science of sweating.Sweating may be one of our weirdest biological functions, but it's also one of our most vital and least understood. In The Joy of Sweat, Sarah Everts delves into its role in the body -- and in human history.Why is sweat salty? Why do we sweat when stressed? Why do some people produce colorful sweat? And should you worry about Big Brother tracking the hundreds of molecules that leak out in your sweat -- not just the stinky ones or alleged pheromones -- but the ones that reveal secrets about your health and vices?Everts's entertaining investigation takes readers around the world -- from Moscow, where she participates in a dating event in which people sniff sweat in search of love, to New Jersey, where companies hire trained armpit sniffers to assess the efficacy of their anti-sweat products.