Air Liur Basi, Sweaty Socks And 9 Other Odours You’ve Been Living With For Far Too Long

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Pamela Dalton, a cognitive psychologist at Monell Chemical Senses Center, explains, "When you first smell an odour, your scent receptors send a signal to your brain's limbic system, which determines how you will process and feel about that particular scent."

But Dalton says the receptors in your nose essentially turn off after around two breaths, and the scent—no matter how strong initially—starts to fade.