Your closest friends are advocates and see the best in you, but they are also observers of the personality traits that could send you to an early grave, according to a new paper.
The authors say that that your personality at an early age (20s) can predict how long you will live past 75 years - and that close friends are usually better than you at recognizing these traits.
Male participants seen by their friends as more open and conscientious ended up living longer. Female participants whose friends rated them as high on emotional stability and agreeableness also enjoyed longer lifespans, the study in
Psychological Science
found.