" Awareness of freedom and responsibility creates anxiety, which is also referred to as anguish or angst. Aspects of romantic attachments can relieve anxieties. For example, Mario Mikulincer et al. argue that loving relationships can act as a " death-anxiety buffering mechanism" , since the sense of security, protection, comfort, self-esteem, and social validation that close relationships provide may serve as defensive devices with respect to existential anxiety about the threat of mortality. "