Anorexia nervosa: search for biological relevance

Anorexia nervosa was explored as the possible expression of an aberration of the processing of information which ordinarily has value in life protection or extension. Each of 6 areas was briefly reviewed, and noted to have the potential for failure to balance 2 or more factors. Anorexia nervosa may prove to be a psychiatric disorder in which there is altered handling of signals which otherwise are useful in survival/longevity.