In human thermodynamics, human entropy is the value of entropy associated with an individual human molecule or system of human molecules. In 2002, American physicist Jack Hokikian defined the concept of the entropy of a human as as such: [10]


This view, to note, although in the right direction, is very elementary. To measure the entropy of a living structure, such as a mouse or a human, as American chemist Martin Goldstein explains, encounters numerous difficulties, but invariably is a measurement obtained in the same manner as are the entropies of simple chemical species obtained via laboratory experiments. [11] In a 2004 article “Entropy and Information of Human Organisms”, Hungarian astrophysicist Attila Grandpierre claims that he was the first person to determined the entropy content of human being. [12]

History
The first to discuss the idea that an individual person or might be associated with a value of relative "energy" but also "entropy" was American naval engineer William Fairburn in his 1914 book Human Chemistry. [1] In 1995, mining engineer Raj Singhal defines human entropy as the effect of individual variations in the efficiency of work of individuals and managers on the system. [6] In 2007, American chemical engineer Libb Thims outlined the basic definition of the human chemical bond, i.e. electromagnetic attachments between people, being comprised of individual measures of enthalpies and entropies. [2]

Relative entropy
In the 2007 book The Second Law of Life by Danish chemist John Schmitz, the "relative entropy" of a human body over the course of its life-span is diagrammed (as shown): [9]

In agenda-driven writings, the term "human entropy" is often found being used in a very loose sense referring to everything that is undesireable, from the human-perspective, from pollution to slave trade to energy loss created by corporate lawyers. [8]

Literature
In literature thermodynamics, the term “human entropy” is often associated, in an unsubstantiated manner, with a gradual but cosmic dissolution of life. [7] In the 1932, English writer Aldous Huxley explicitly used the term "human entropy" in relation to the energy of expansion released due to sexual restraint.

Into the 1950s, literature definitions on entropy likely began to stem from Austrian physicist Erwin Schrödinger’s 1944 conception of “positive entropy” and death, in connection to information theory, such as found in the work of Thomas Pynchon. In other cases, however, different definitions can be found.

Human computer systems
In computer science, the conception of human entropy E(S) related to the interactions involved in a computer-human system was introduced in 1992 by Polish-born, American industrial engineer Waldemar Karwowski, in what seems to be based on a type of fuzzy entropy logic. [3] Strangely, Karwowski uses the symbol “E” for entropy and "S" for system. In any event, according Karwowski, using a bit of argument, the “system entropy” E(S), such as a person in their office interacting with a computer, can be defined as the difference between the human entropy E(H) and the entropy of a system regulator E(R), which he defines as “ergonomic intervention efforts”, or in equation form: [4]

E(S) ≥ E(H) – E(R)

This view, to note, seems to have little connection to actual thermodynamics.

References
1. Fairburn, William Armstrong. (1914). Human Chemistry, (entropy, pgs. 34-35). The Nation Valley Press, Inc.
2. Thims, Libb. (2007). Human Chemistry (Volume One), (entropy components of the human chemical bond, pgs. 270-72). Morrisville, NC: LuLu.
3. (a) Karwowski, Waldemar. (1992). “The human world of fuzziness, human entropy, and the need for the general fuzzy systems theory.” Journal of Japan Society for Fuzzy Theory and Systems, 4, 591-609.
(b) Karwowski, Waldemar. (1995). “A general modeling framework for the human-computer interaction based on the principle of ergonomic compatibility requirements and human entropy.” In Grieco, A. Molteni, G., Occhipinti, E. and Piccoli, B. (eds.) Work witrh Display Units 94 (Amesterda: North-Holland), pgs. 473-8.
4. Jacko, Julie A. and Sears, Andrew. (2003). The Human-computer Interaction Handbook: Fundamentals, Evolving Technologies, (pgs. 1229-30). Lawrence Erlbaum Assoicates.
5. (a) Huxley, Aldous. (1938). Ends and Means: An Enquiry Into the Ideals and Into the Methods Employed for their Realization (pg. 368). Chatto & Windus.
(b) Word Study (1969). G. C. Merriam Co.
6. Singhal, Raj K. (1995). Mine Planning and Equipment Selection 1995, (pg. 928: “human entropy”). Taylor & Francis.
7. Docherty, Thomas. (1986). John Donne, Undone. (pg. 19, 23, 76). Routledge.
8. Smith, Sam. (1992). “Global Dumbing: the Politics of Entropy”, Progressive Review, April.
9. Schmitz, John E.J. (2007). The Second Law of Life: Energy, Technology, and the Future of Earth as We Know It (pg. 119). William Andrew Publishing.
10. Hokikian, Jack. (2002). The Science of Disorder: Understanding the Complexity, Uncertainty, and Pollution in Our World (pg. 48). Los Feliz Publishing.
11. Goldstein, Martin and Goldstein, Inge F. (1993). The Refrigerator and the Universe: Understanding the Laws of Energy (section: Entropy of a mouse, pgs. 297-99). Harvard University Press.
12. Grandpierre, Attila. (2004). “Entropy and Information of Human Organisms and the Nature of Life.” Frontier Perspectives, Vol. 13, pg. 16. Mar. 22.