Pheromone sex

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Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to impact the behavior of the receiving individuals. Pheromones are used from basic unicellular prokaryotes to complex multicellular eukaryotes. In addition, some vertebrates , plants and ciliates communicate by using pheromones. Lintner , Adolf Butenandt , and ethologist Karl von Frisch who called them various names, like for instance "alarm substances". Aggregation pheromones function in mate selection, overcoming host resistance by mass attack, and defense against predators.
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Pheromones and their effect on women’s mood and sexuality

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Pheromone - Wikipedia

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.
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Do Pheromones Play a Role in Our Sex Lives?

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. Still, after decades of research, the story in humans is not quite so clear.
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If we stripped away our material possessions, our clothes, and all the things we surround ourselves with, what is left? Evolution tells us that at one point in time, we were connected to the earth and our instincts in order to survive. Pheromones, for instance, are chemicals that give us a sense of subconscious smell. These chemicals help us naturally connect with those around us, especially in terms of our sexual attraction to others.
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