Deep Inside the Mind of the Narcissist: The Psychology: 3-Video Compilation

Any sort of mental illness among family members, especially left untreated, can cause stress and discord in the family, but sometimes, the affected person doesn't even realize there's a problem.

This is especially the case with narcissistic personality disorder, generally because a narcissist, by nature, sees no fault in him/herself. And she's not capable of it, either.

If you've ever dealt with someone with narcissistic personality disorder (NPD), you'll know exactly what I mean.

"They tend to exaggerate in an immensely obvious way - as people they're unusual in their personality," says clinical psychologist Jillian Bloxham. "It becomes very evident when a person is narcissistic."

Healthy self-esteem is important for everyone, but some people develop an over-inflated sense of self-importance that leads to the belief that other people's feelings, thoughts and beliefs have no relevance. This is the first sign many people recognize in a person who suffers from NPD.

NPD is a tricky condition, because often, narcissists don't even realize anything is wrong--so identifying narcissistic personality disorder can be a challenge--but mostly for the narcissists themselves.

In general, narcissists are known for their sense of personal entitlement that causes them to expect people around them to cater to their every desire, to anticipate their every need and to respond post-haste in fulfilling them.

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