A distribution of heights of a company of American civil war solders, showing an average height of about 5'10".

In mate selection, averageness refers to the trend that average traits tend to be sexually selected for or more physically attractive on average, being that in theory they are indicative of long term stability in evolution. [1]

Human chemistry
In human chemistry, averageness is theorized to be one of the measurable components of the enthalpy factors of the human chemical bond. [2]

Further reading
1. Rhodes, Gillian; Zebrowitz, Leslie, A. (2002). Facial Attractiveness - Evolutionary, Cognitive, and Social Perspectives (averageness as fundamental, pgs. 21, 28; average faces, attractiveness of, pgs. 61-62, etc.). Ablex.
2. (a) Thims, Libb. (2007). Human Chemistry (Volume One) (averageness, pgs. 97, 148-49, 271, 327; averageness factor, pg. 150) (preview), (Google books). Morrisville, NC: LuLu.
(b) Thims, Libb. (2007). Human Chemistry (Volume Two) (averageness, pgs. 390, 500) (preview), (Google books). Morrisville, NC: LuLu.

External links
● Averageness – Wikipedia.