A recent nine-year study found that long-term relationship satisfaction is mainly influenced by an individual’s own personality traits, with neuroticism negatively affecting and conscientiousness positively affecting satisfaction.

People who are organized and responsible tend to have more children, a new study shows—hinting at evolutionary advantages for conscientiousness.

Childhood experiences with neglectful or controlling parents may shape adult personality traits that interfere with daily life, a new study shows.

A new longitudinal study of university students found that having non-controlling, supportive relationships is associated with slight increases in well-being, agreeableness, conscientiousness, and openness to experience over the course of an academic year.