“For a long time, it has been implied that being in a romantic relationship with a narcissist could potentially cause post-traumatic stress disorder symptoms. However, such an association has not been empirically studied until now. In my 2022 research study conducted at Harvard University and published in the journal Personality and Individual Differences, I found that narcissistic traits, particularly grandiose narcissism, predicted PTSD symptoms in those who had been in romantic relationships with partners high in these traits. This is the first large-scale research study to establish an association between narcissistic partner traits and PTSD symptoms.” – Shahida Arabi, MA