» Are people who bite their nails perfectionists?
Pulling hair, biting nails, picking skin are not simply 'nervous' habits, a new study finds, suggesting they are instead associated with perfectionism, frustration and boredom.

» Men are 'more narcissistic and entitled than women'
A study examining gender differences across three aspects of narcissism finds that men are, on average, more narcissistic than women - a quality that has unique pros and cons.

» Altering brain chemistry makes us more sensitive to inequality
Study finds that prolonging dopamine's effects in the brain boosts compassionWhat if there were a pill that made you more compassionate and more likely to give spare change to someone less...