How are pheromones detected?

Pheromone signals are detected through an organ 3 inches inside the nose called the Vomeronasal Organ (VNO). When the VNO detects the pheromone, it sends a response signal to the brain. So, while the sense of smell is usually discussed in studies of pheromone attraction, it is really a chemical response that occurs, rather than a specific identifiable smell. In other words, she responds to your chemistry on a subconscious level, with feelings of attraction, arousal, interest and excitement.

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