Large Difference in Smell Perception Found

A nose by any other name...
Recent research by the Monell Chemical Senses Center has discovered that there is up to a 30% variability in olfactory receptors between any two people.  The differences affect how people perceive the intensity and pleasantness of odors.

People have 400 specialized smell sensors, called olfactory receptor  proteins. For any two randomly chosen people, 140 of their 400 receptors will be different. Making it even more complex, among these 400 there are variants, and each receptor variant responds differently, so that nearly every individual perceives smells differently.