NPA personality theory
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N types with large spleens
Posted by D_Katana on April 23, 2018, 6:30 am
We previously considered those with South Sea ancestry, notably the nomadic groups capable of travelling great distances on small boats, to be mainly unbridled carriers of the N trait.
It turns out that over centuries, the Bajau people have evolved larger spleens to support sea diving: http://www.bbc.com/news/science-environment-43823885
One wonders how such genes interplay with those posited to contribute to the NPA schema.