The secret power of pheromones

Many of us have experienced an inexplicable attraction to the opposite sex. We’ve all heard people involved in happy, romantic relationships saying that there was an instant spark between them. Why is this happening? It's all about pheromones, the mysterious "love hormones".


Pheromones –  are chemical substances secreted externally by some animals, people, and plants. External secretion leads to a chemical communication between individuals of the same species. Pheromones are biological markers of their own species, volatile chemosignals controlling neuroendocrine behavioural reactions, development processes, as well as  number of processes related to social behaviour and reproduction.


Pheromones modify the behaviour, physiological and emotional state or metabolism of other individuals of the same species. Typically, pheromones are produced by specialised glands. Pheromone signals are detected by a special organ in the nose called the vomeronasal organ (VNO). VNO – receptor is a separate body and it should not be confused with olfactory organs. VNO is associated directly with the brain structures that regulate the production of sex hormones and control sexual behaviour.