Sign Of Dark Personality

A fondness for bitter-tasting food and drinks, such as black coffee, may be a sign of dark personality traits, including Machiavellianism, sadism and narcissism, according to a new study.

A fondness for bitter-tasting food and drinks, such as black coffee, may be a sign of dark personality traits, including Machiavellianism, sadism and narcissism, according to a new study.