Social Network Theory is a framework used to understand the relationships and structures within social networks. It examines how individuals, groups, or organizations interact and connect with one another, often represented as nodes and edges in a graph. This theory helps analyze patterns of communication, influence, and resource sharing among members of a network. Researchers use Social Network Theory to study various phenomena, such as the spread of information, the formation of communities, and the dynamics of social influence. It has applications in fields like sociology, psychology, business, and public health, providing insights into how social connections impact behavior and outcomes.