Pheromones and sex

When we talk about animal instinct, we're often talking about pheromones - chemicals that affect the behaviour of other animals, and make individuals irresistible to the opposite sex during mating season. For decades, debate has raged over whether humans might also release and be susceptible to our own unique pheromones. But a new study has just provided evidence that the two leading ' human sex pheromone ' candidates aren't actually pheromones at all. Until now, researchers had narrowed down the hunt for human pheromones to two chemicals - androstadienone AND , which is found in male sweat and semen, and estratetraenol EST , found in women's urine.

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Do human pheromones actually exist?

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Human sex pheromones - Wikipedia

This was no fetish party, but an attempt at seduction through smell. If you like what you smell, a date with the owner could be on the cards. This olfactory outing was a success, and subsequent Pheromone Parties have now been held in Los Angeles and London. The idea that human pheromones influence our chances of sex and love permeates pop culture. Some contain androstenone — the most potent of all sexual attractants — which its sellers claim increases the libido of women while simultaneously making men more attractive. Androstenol, meanwhile, is promised to make you seem more approachable to the opposite sex.
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Pheromones and their effect on women’s mood and sexuality

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.
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Love might be in the air on Valentine's Day , metaphorically speaking. But scientists have long debated whether love—or, at least, sexual attraction—is literally in the air, in the form of chemicals called pheromones. Creatures from mice to moths send out these chemical signals to entice mates. And if advertisements about pheromone-laden fragrances are to be believed, one might conclude that humans also exchange molecular come-hithers.

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