Pheromone is a natural stirring chemical that emits a subliminal odor signal to the opposite gender which activates an extremely dominant appealing reaction and passionate feelings.
Scientists were aware for years about a particular organ in the nasal cavity known as the vomero-nasal organ or VNO and its only role is to sense small quantities of chemicals, which float in the air, called pheromones.
VNO detect pheromones is a fact that has been found in lab tests. It sends a strong signal straight to the limbic section of the brain, which is also referred to as seat of emotion. This area of ​​the brain is not linked to motive or cognitive thought patterns, but which manages the feelings and sexual wishes. Thus, the motivating approach one experiences from pheromones can be rather influential.
Once these sexual and loving feelings engulf the mind, the brain discharges a chemical known as phene-thylamine which initiates the creation of dopamine and sets off the pheromone reaction.

Maybe things have been going downhill from the time he started meeting up with that other girl. You would have thought of thousand ways to get rid of her. In your dreams you must killed her time and again however the day he leaves you or dumps you is the day you realize just how foolish you were to have been so preoccupied with that lady when you should have been taking care of your relationship. The only question that keeps coming into your head is how to win him back and it is a tricky one.
First thing is to figure a few things about your ex which should not be tough because when men complain they do so loudly and directly so remember his complaints with regards to you and change those attributes. The next time you see him either by chance or deliberately preplanned you act different and let him feel the changes in you. This should make him crave you desperately.