N Arcticism can have its benefits as it adds to mental endurance, a study from Queen & # 39; s University Belfast found.
New research finds that personality trait can also make people feel less stressed and less vulnerable to depression
Narcissistic personality disorder is characterized by someone who believes they have special reasons that make them different, better, or more deserving than others.
They may feel upset if people do not acknowledge their obvious achievements, resent other people's successes, and be upset if other people do not put their needs above their own.
But narcissists may also suffer from low self-esteem and may be described as vulnerable.
A new study, run by Queen's Belfast University, has been published in the journals Personality and Individual Differences and European Psychiatry.
Dr Costas Papageorgiou of the School of Psychology at Queen says: "Narcissism is part of the 'dark tetra d' of personality, which also includes Machiavellianism, psychopathy and sadism.
"There are two main dimensions to narcissism ̵
" Vulnerable narcissists are likely to be more protective and view others' behavior as hostile, ie. whereas grand narcissists usually have an over-inflated sense of importance and concern with status and power.
"People with a high spectrum of dark features, such as narcissism, engage in risky behavior, have an unrealistic superior opinion of themselves, are self-confident, show little empathy, and have little shame or guilt. "