Hi Phyllis
I wrote the kind of article that I think you are looking for in a 2009 issue of NCT Review in UK. It has recently been republished (with permission) on EvolutionaryParenting.com. You can find it here: http://www.evolutionaryparenting.com/?p=601.
Hope this helps
Regards
Helen
Dr Helen Ball, Professor of Anthropology & Fellow, Wolfson Research Inst.
Director of Postgraduate Studies, Sleep Lab Director
Durham University, Dawson Building, South Road, Durham, DH1 3LE, UK
E: [log in to unmask] W: www.dur.ac.uk/sleep.lab; www.dur.ac.uk/anthropology
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