Narcissistic personality disorder causes symptoms like lack of empathy and low self-esteem, which can make maintaining a relationship difficult.

Narcissists are often manipulative and lack empathy. If someone in your life is one, don't take their behavior personally and set boundaries.

One study found that when narcissists knew the symptoms of NPD, they readily admitted to being a narcissist when asked. So ...

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Grandiosity and an inflated sense of ego, such as exaggerating achievements and viewing themselves as superior. A belief that ...

But acting full of yourself and not taking other people’s needs into account isn’t the same as a diagnosable mental condition ...

Being an “overgiver” means your default setting is to give more than what’s healthy, sustainable or reciprocated. And it’s not just your time or help; you likely offer others emotional energy, ...