Originally Posted by mrsD

I searched this concept about nerves giving off heat and found this:

http://scienceblog.com/12738/physici...d-more-likely/



There are heat sensing nerves in the skin as well as cold ones. This article explains that sensations occurring in both may arise along the axon as well as the end points in the skin.

http://www.ncbi.nlm.nih.gov/pubmed/21050282

In general heat sensing neurons are over ridden by cold ones. That is why menthol which stimulates the cold sensory neurons, overcomes sensations of heat when applied to the skin. (when no actual cold is present). It is why menthol is included in many pain rubs, and why Biofreeze feels cold when it does not general cold temperature.