Happier Japanese adults live longer, according to a new study, which found that people who described themselves as unhappy faced a significantly higher risk of death over a seven‑year period.

The extreme male brain theory of autism suggests that autism represents an exaggeration of typical male cognitive traits of low empathizing and high systemizing

Women experience greater jealousy when their romantic rivals have highly feminine faces

Building muscle strength may help prevent depression, especially in women

Children with attention disorders struggle to process whole faces during social interactions

Deep-seated negative beliefs formed in childhood play a role in how borderline personality traits appear in people with bipolar disorder

A new study has found narcissism and perfectionism are more closely linked in everyday life than previously thought, with moment-to-moment changes in these traits shaping how people think and feel.

Researchers find major flaws in the historical clinical trials used to justify spanking

Narcissism is viewed as a toxic personality trait, but can protect or harm a person’s mental well-being

New psychology research reveals the cognitive cost of smartphone notifications