What Is Narcissism? Narcissism is self-confidence in its extreme form and is often displayed as grandiosity and a sense of entitlement. Narcissism can be considered as a personality trait that occurs on a continuum and when excessive it interferes with healthy psychological functioning, says Dr. Seth Rosenthal, Harvard University, an expert in narcissism and healthy self-esteem.   … Continue reading How to Become a “Healthy Narcissist”