Buy pheromones for lesbians

Using a brain scanning technique called positron emission tomography, scientists found that a potent chemical lurking in male sweat causes a rush of electrical activity in the brains of straight women and gay men, while lesbians and straight men treat it like any other common odour. Ivanka Savic, a neuroscientist at the Stockholm Brain Institute who led the study, said the finding suggested specific brain circuits were engaged when we were exposed to chemicals we found sexually stimulating. She added that the scans did not reveal whether sexual behaviour was learned or hard-wired in our brains at birth. In the study, three groups of 12 volunteers, including lesbians, heterosexual women and straight men, were asked to sniff a variety of odours.

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Pheromones are substances which are secreted to the outside by an individual and received by a second individual of the same species. Many examples exist in animals but their role in humans remains uncertain since adults have no functioning vomeronasal organ, which processes pheromone signals in animals. Yet pheromones can be detected by the olfactory system although humans under develop and underrate their smelling sense. Pheromones may be present in all bodily secretions but most attention has been geared toward axillary sweat which contains the odorous androstenes. One of these steroidal compounds, androstadienone, is present at much higher concentrations in male sweat and can be detected by women, albeit with wide variation in sensitivity.

By Patrick Barry. Lesbian and heterosexual women respond differently to specific human odours, a brain-scanning study has found. The homosexual women showed similar brain activity to heterosexual men when they inhaled certain chemicals, which may be pheromones, the researchers say. When the heterosexual women smelled AND their brains showed activity in the anterior hypothalamus, a region of the brain thought to process sexual cues. But EST only produced activity in the olfactory region of their brains, the area that processes smells.