The document discusses the default mode network (DMN), a network of brain regions that are active when an individual is not focused on tasks. The DMN is involved in daydreaming and predictive thinking based on past experiences and the current environment. There is ongoing research trying to understand what the DMN is doing and how it relates to behavior, beliefs, thoughts, and more. Coaches can help identify when a client's DMN is active and leverage it to achieve coaching goals by addressing negative patterns of thinking that may be hindering progress.