Your smell circuits are hotwired to those that process emotion, memory and motivation. Is that why you’re feeling so edgy, chatty, touched or sated right now?
By Jena Pincott
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It May Freak You Out (a Little)
Yes, you can inhale fear—and it changes your brain, found a
German study in which "fear sweat" sniffers showed increased activation in neural circuits associated with empathy (not so for sniffers of normal sweat). After breathing it in for at least five minutes, you may feel more anxious (and not know why), as volunteers did in a study at the Monell Chemical Senses Center.