Life extension

‘Life extension’ is a concept regarding the extension of the life of something, such as a computer system or a human. Life is distinguished into officially productive life and life in general, as both machines and living beings can have life beyond productive use. Life extension can thus be Productive Life extension or general life extension. 
Productive Life extension is a about extending the period of productivity in a person's life by extending her healthy age. 
== Media ==
* «Work, age, health, and work participation. A theoretical model» 2013 
* «Productive Life Evaluations: Calculation, Accuracy, and Economic Value» 1995 (about cattle).
* «Article Navigation Identification of genetic markers for productive life in commercial sows» 2009
== R ==
Life; Health; Biotechnology; Biogerontology; Life prediction; Machine health