Testosterone Levels and Neuroticism in Young Men

[Jinzang]

A study finds that higher endogenous testosterone levels in young men means a bigger brain and less neuroticism.

Previous research has found an association between a smaller cerebellar volume and higher levels of neuroticism. The steroid hormone testosterone reduces stress responses and the susceptibility to negative mood. Results of this study demonstrated an inverse relation between total brain corrected cerebellar volumes and neurotic personality traits in adolescents and young adults. In males, higher endogenous testosterone levels were associated with lower scores on neurotic personality traits and larger cerebellar gray matter volumes. Analyses showed that testosterone significantly mediated the relation between male cerebellar gray matter and measures of neuroticism.

The abstract of the study is online.

 

[CoastWatcher]

Another fascinating study, thank you.