Narcissism is a personality trait characterized by an excessive focus on oneself, often leading to a lack of empathy for others. People with narcissistic tendencies may seek admiration and validation, believing they are superior to those around them. This behavior can manifest in various ways, including boasting about achievements or needing constant attention. In psychology, narcissism is often discussed in relation to Narcissistic Personality Disorder (NPD), a more severe form that can significantly impact relationships and daily functioning. Individuals with NPD may struggle with criticism and have difficulty maintaining healthy connections due to their self-centered nature.