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Communal eating, whether in feasts or everyday meals with family or friends, is a human universal, yet it has attracted surprisingly little evolutionary attention. I use data from a UK national stratified survey to test the hypothesis that eating with others provides both social and individual...
Individuals are often biologically predisposed for certain personality traits. In addition, those traits may enhance or diminish health and overall life satisfaction. One recent area of biological study has been the OXTR rs53576, which is a polymorphic site in the oxytocin receptor gene. OXTR...
Variation in male testosterone has been hypothesized to reflect the evolved hormonal regulation of investment in mating versus parenting effort. Supporting this hypothesis, numerous studies have observed lower testosterone in married men and fathers compared with unpartnered and childless men,...
Group synchronised dance is hypothesised to activate the Endogenous Opioid System (EOS), thereby increasing pain threshold, and encouraging social closeness. Previous studies have been limited to the use of pain threshold as a proxy indicator of EOS activation. We conducted a double-blind...
There is growing evidence that steroid hormones interact to shape social behavior. In particular, regarding basal hormonal levels, cortisol has repeatedly been found to moderate the effect of testosterone on behavior. However, the role of contextual and hormone-altering factors such as acute...
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