In Pursuit of Olfactory, Chemical, and Tactical Cues

Professor of Psychology Gordon Gallup proves that some people can even make a kiss seem boring:

The exchange of complex information that occurs during a kiss, in terms of olfactory cues and chemical cues and tactile cues and postural adjustment, may tap into primitive, evolved mechanisms that make a determination about instances of potential genetic incompatibility.

It turns out, in the words of the reporter, that he has a more simple explanation of the importance of a kiss: "He says the bottom line is that a good kiss doesn't make a relationship, but a bad kiss can kill a relationship."

Hat Tip: Ann Althouse