If-Then statements are logical constructs used to express conditional relationships. They typically follow the format "If condition, then result." For example, "If it rains, then the ground will be wet." This structure helps in making predictions based on specific conditions. These statements are widely used in various fields, including mathematics, programming, and everyday decision-making. In programming, If-Then statements help control the flow of a program by executing certain actions only when specific conditions are met. This allows for more dynamic and responsive systems.