I am David F Marks, a psychologist, author and editor; my hobbies are wild nature, photography, film and books.


Homeostatic regulation is a singular unifying principle in all health protection and illness prevention. Health is regulated by homeostasis, one of the distinguishing features of all living things; it preserves life when in balance; it removes life when imbalanced; when not present at all, a system cannot be living… Homeostasis operates at all levels of living systems: in cells, tissues, organs, organisms, societies and, some have argued, in biodiversity and the planet as a whole. 

Homeostatic theory of obesity – David F Marks (2015)

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