This was an interesting article... I think there has been a rise in awareness of NPD and Narcisstic Abuse. This is one of the reasons I am finding it more prevalent online. But I can understand because studies have shown the psychological, emotional, and physical abuse caused by someone with NPD can be as devastating as being kidnapped by a serial killer. My personal experience was going from a normal healthy adult, and in 5 years of being with someone with NPD(unknowingly) I developed PTSD, severe anxiety, panic attack, living in fear constantly, depression, and a number of of physical and mental health issues, all brought on by the abuse. This is what I have found...

The Truth About Narcissism

Narcissists cut a wide, swashbuckling figure through the world. At one end of the self-loving spectrum is the charismatic leader with an excess of charm, whose only vice may be his or her inflated amour-propre. At the far end of the spectrum reside individuals with narcissistic personality disorder, whose grandiosity soars to such heights that they are manipulative and easily angered, especially when they don't receive the attention they consider their birthright.

This came from a different article on this same website, and I find it to be very simply accurate.