Physical connectedness and body height
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PHYSICAL CONNECTEDNESS AND BODY HEIGHT
M. Hermanussen1
, K. Staub2
1
Aschauhof, Germany
2 Centre for Evolutionary Medicine, Institute of Anatomy, University of Zurich, Switzerland
3 OttoFriedrichUniversit t Bamberg, Germany
4 University of Potsdam, Institute of Biochemistry and Biology, Germany
Recent evidence suggests that social networks play an important role in the regulation of adolescent
growth and adult height. <...> We considered
Switzerland as a geographic network with 169 nodes (district capitals) and 335 edges (connecting roads)
and studied effects of connectedness on height in Swiss conscript from 1884-1891, 1908-1910, and 20042009. <...> In 1884-1891, in 1908-1910, and in 2004-2009, 1st
, 2nd
and 3rd
order neighbouring districts significantly
correlate in height (p<0.01) indicating that height in a district depends on height of physically connected
neighbouring districts. <...> The present data suggest that people can be short because their neighbours are
short; or tall because their neighbours are tall (community effect on growth). <...> Keywords: body height, connectedness, community effect, conscripts, Switzerland
, C. A mann3
, D. Groth4
There are two contrasting aspects of human growth
and final height in modern auxology: there is the idea of
growth as a target-seeking process regulated by genes,
nutrition, health, and the state of an individual’s social
and economic environment – optimal conditions are
expected to result in the achievement of a person’s
maximum height reflecting full genetic potential [Tanner,
1986] – and on the other hand, there is the observation
that historic populations even under apparently
prosperous socio-economic circumstances, were significantly
shorter than today. <...> European populations of
all social strata have increased in height by some 1519
cm since the mid-19th
Sch nbeck et al., 2013].
century [Komlos, 2009;
There are good arguments for the assumption
that some steady improvements of living conditions,
food, health, and modern environment, must have
led to the observed rise in recent European adult
height [Hermanussen, 2013]: the implementation of
modern health surveillance systems, the successful
fighting against most infectious diseases, elimination
of starvation, and the improvement of socioeconomic
conditions particularly of the lower social classes
since the first half of the 20th
countries.
100 years appear to be <...>
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