Testosterone has been widely investigated in associations withmany aspects of social interactions, emotions and behavior. Noresearch has been conducted on its contribution to the variabilityof love styles in human. The aim of this paper was to uncover thepossible relationship between not only the actual plasmatestosterone levels, but also the prenatal testosterone level(expressed as 2D:4D ratio) and the sensitivity of androgenreceptor and love typology in young healthy men. There are sixlove styles which are primary including Eros (passionate romanticlove), Ludus (playful) and Storge (friendly) and secondary loveconsisting of Mania (obsessive), Pragma (practical realistic) andAgape (altruistic). Our results pointed out that low testosteroneconcentrations are associated with higher score for Eros, Ludus,Pragma, Mania love style. No significant association was provedfor other tested parameters of androgenicity (2D:4D, sensitivityof androgen receptor) and love style after correction was applied.Different attitudes and behavior in relationships do havea biological foundation related to endogenous testosterone levelsin plasma. Future studies should address questions about thefamily and social background of participants to differentiate herebetween moral rules or/and social-conventional rules.
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