Human enhancement refers to any attempt to temporarily or permanently overcome the current limitations of the human body through natural or artificial means. The term is sometimes applied to the use of technological means to select or alter human characteristics and capacities, whether or not the alteration results in characteristics and capacities that lie beyond the existing human range. Here, the test is whether the technology is used for non-therapeutic purposes. Some bioethicists restrict the term to the non-therapeutic application of specific technologies — neuro-, cyber-, gene-, and nano-technologies — to human biology.
Human enhancement technologies (HET) are techniques that can be used not simply for treating illness and disability, but also for enhancing human characteristics and capacities. In some circles, the expression "human enhancement technologies" is synonymous with emerging technologies or converging technologies. In other circles, the expression "human enhancement" is roughly synonymous with human genetic engineering, it is used most often to refer to the general application of the convergence of nanotechnology, biotechnology, information technology and cognitive science (NBIC) to improve human performance.
Existing technologies 
- Reproductive technology
- Nootropics, drugs, supplements, nutraceuticals, and functional foods that improve mental functions such as cognition, memory, intelligence, motivation, attention, and concentration.
- Computers, cell phones, Internet, and any pieces of technology that enhance the human condition in ways that make it more efficient. For example, making schedules, keeping a list of phone numbers, communication with others, general information storage, etc.
Emerging technologies 
Speculative technologies 
- Mind uploading, the hypothetical process of transferring or copying a conscious mind from a brain to a non-biological substrate by scanning and mapping a biological brain in detail and copying its state into a computer system or another computational device.
- Exocortex, a theoretical artificial external information processing system that would augment a brain's biological high-level cognitive processes.
While in some circles the expression "human enhancement" is roughly synonymous with human genetic engineering, it is used most often to refer to the general application of the convergence of nanotechnology, biotechnology, information technology and cognitive science (NBIC) to improve human performance.
Since the 1990s, several academics (such as some of the fellows of the Institute for Ethics and Emerging Technologies) have risen to become cogent advocates of the case for human enhancement while other academics (such as the members of President Bush's Council on Bioethics) have become its most outspoken critics.
Advocacy of the case for human enhancement is increasingly becoming synonymous with “transhumanism”, a controversial ideology and movement which has emerged to support the recognition and protection of the right of citizens to either maintain or modify their own minds and bodies; so as to guarantee them the freedom of choice and informed consent of using human enhancement technologies on themselves and their children.
Neuromarketing consultant Zack Lynch argues that neurotechnologies will have a more immediate effect on society than gene therapy and will face less resistance as a pathway of radical human enhancement. He also argues that the concept of "enablement" needs to be added to the debate over "therapy" versus "enhancement".
Many critics argue that "human enhancement" is a loaded term which has eugenic overtones because it may imply the improvement of human hereditary traits to attain a universally accepted norm of biological fitness (at the possible expense of human biodiversity and neurodiversity), and therefore can evoke negative reactions far beyond the specific meaning of the term. Furthermore, they conclude that enhancements which are self-evidently good, like "fewer diseases", are more the exception than the norm and even these may involve ethical tradeoffs, as the controversy about ADHD arguably demonstrates.
However, the most common criticism of human enhancement is that it is or will often be practiced with a reckless and selfish short-term perspective that is ignorant of the long-term consequences on individuals and the rest of society, such as the fear that some enhancements will create unfair physical or mental advantages to those who can and will use them, or unequal access to such enhancements can and will further the gulf between the "haves" and "have-nots".
Accordingly, some advocates, who want to use more neutral language, and advance the public interest in so-called "human enhancement technologies", prefer the term "enablement" over "enhancement"; defend and promote rigorous, independent safety testing of enabling technologies; as well as affordable, universal access to these technologies.
Effects on identity 
Human enhancement technologies can impact human identity by affecting one's self-conception. This is problematic because enhancement technologies threaten to alter the self fundamentally to the point where the result is a different and inauthentic person. For example, extreme changes in personality may affect the individual's relationships because others can no longer relate to the new person.
See also 
- Hughes, James (2004). Human Enhancement on the Agenda. Retrieved 2007-02-02.
- Moore, P., "Enhancing Me: The Hope and the Hype of Human Enhancement", John Wiley, 2008
- Enhancement Technologies Group (1998). Writings by group participants. Retrieved 2007-02-02.
- Roco, Mihail C. and Bainbridge, William Sims, eds. (2004). Converging Technologies for Improving Human Performance. Springer. ISBN 1-4020-1254-3.
- Agar, Nicholas (2004). Liberal Eugenics: In Defence of Human Enhancement. ISBN 1-4051-2390-7.
- Parens, Erik (2000). Enhancing Human Traits: Ethical and Social Implications. Georgetown University Press. ISBN 0-87840-780-4.
- "Dorlands Medical Dictionary". Archived from the original on 2008-01-30.
- Lanni C, Lenzken SC, Pascale A, et al. (March 2008). "Cognition enhancers between treating and doping the mind". Pharmacol. Res. 57 (3): 196–213. doi:10.1016/j.phrs.2008.02.004. PMID 18353672.
- "So you're a cyborg -- now what?". Retrieved 2013-3-22.
- Bailey, Ronald (2006). The Right to Human Enhancement: And also uplifting animals and the rapture of the nerds. Retrieved 2007-03-03.
- Members of the President's Council on Bioethics (2003). Beyond Therapy: Biotechnology and the Pursuit of Happiness. President's Council on Bioethics.
- Hughes, James (2004). Citizen Cyborg: Why Democratic Societies Must Respond to the Redesigned Human of the Future. Westview Press. ISBN 0-8133-4198-1.
- Ford, Alyssa (May / June 2005). "Humanity: The Remix". Utne Magazine. Retrieved 2007-03-03.
- R. U. Sirius (2005). "The NeuroAge: Zack Lynch In Conversation With R.U. Sirius". Life Enhancement Products.
- The Royal Society & The Royal Academy of Engineering (2004). Nanoscience and nanotechnologies (Ch. 6). Retrieved 2006-12-05.
- European Parliament (2006). Technology Assessment on Converging Technologies. Retrieved 2006-12-06.
- European Parliament (2009). Human Enhancement. Retrieved 2010-01-10.
- Carrico, Dale (2007). Modification, Consent, and Prosthetic Self-Determination. Retrieved 2007-04-03.
- Mooney, Pat Roy (2002). Beyond Cloning: Making Well People "Better". Retrieved 2007-02-02.
- Fukuyama, Francis (2002). Our Posthuman Future: Consequences of the Biotechnology Revolution. Farrar Straus & Giroux. ISBN 0-374-23643-7.
- Institute on Biotechnology and the Human Future. Human "Enhancement". Retrieved 2007-02-02.
- Good, Better, Best: The Human Quest for Enhancement Summary Report of an Invitational Workshop. Convened by the Scientific Freedom, Responsibility and Law Program. American Association for the Advancement of Science. June 1–2, 2006. Author: Enita A. Williams. Edited by: Mark S. Frankel.
- DeGrazia, David (2005). "Enhancement Technologies and Human Identity". Journal of Medicine and Philosophy 30: 261–283. Retrieved 12 May 2013.
|Wikiquote has a collection of quotations related to: Human enhancement|
- Enhancement Technologies Group
- Institute for Ethics and Emerging Technologies
- RTÉ’s Big Science Debate 2007
- Human Enhancement Study (European Parliament STOA 2009)
- Ethics + Emerging Sciences Group (Cal Poly, San Luis Obispo)
- "Ethics of Human Enhancement: 25 Questions & Answers" (an NSF-funded report), August 31, 2009