Narcissism may not just be bad for your social life; it may also hamper your health.
A new study suggests that individuals with certain narcissistic personality traits may have elevated levels of cortisol -- the primary stress hormone -- putting them at greater risk for longterm health problems, particularly cardiovascular events.
And that is especially true for men.
In the new study, published Monday evening in the journal PLoS One, researchers analyzed 106 college undergraduates, assessing their narcissism levels using a 40-question inventory. Students were asked to agree or disagree with statements demonstrating "healthier" narcissistic tendencies (i.e., "I will be a success") and unhealthy ones ("I find it easy to manipulate people.")