 Sociology examines value at a social level using theoretical constructs such as value theory, norms, anomie, etc.One value system suggested by social psychologists, broadly called Terror Management Theory, states that human meaning is derived from a fundamental fear of death, and values are selected when they allow us to escape the mental reminder of death.Alongside this, there are a number of theories about the way in which humans evaluate the positive and negative aspects of their existence and thus the value and meaning they place on their lives.