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It has been established that women tend to rely more heavily on olfactory cues than males, rating those with pleasant body odour as more attractive than those with less pleasant body odour. Chemical Sensors and Biosensors. This includes the role of the major histocompatibility complex MHC , the human leukocyte antigen HLA and their different heterozygotic variations. In addition, no difference was found between two types of male pheromones in women's preference aside from the location of pheromones production. The olfactory membrane plays a role in smelling and subconsciously assessing another human's pheromones. See also: Ovulatory shift hypothesis. Because they connect emotionally" PDF. Nature Reviews Neuroscience. Using questionnaires and self-report data, a greater reliance was found for females on olfactory cues than males.

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