Narcissistic personality disorder (NPD)

is a cluster B personality disorder with a long-term pattern of abnormal behaviour characterized by exaggerated feelings of self-importance, an excessive need for admiration, and a lack of empathy which can lead to exploitation of others. We all have narcissistic traits but they become a problem when a person has many of these traits and this impacts on the way they interact with others. A person with NPD more than likely struggles with their own identity and self worth so this in turn leads to them behaving in cruel ways to the people they are involved with. The impact of being in a relationship with someone who is showing a lot of signs of NPD can take its toll on your physical and mental health due to the constant states of anxiety and the body releasing cortisol and adrenaline.