Dismantle your overthinking loop

Sunulife examines the mechanism of overthinking , explaining that this mental spiral is not a lack of discipline but a behavior reinforced by the nervous system as a way to soothe anxiety. The author shows how the brain can mistake analysis for safety , creating cycles of rumination, worry, and decision paralysis that drain cognitive resources. To break the cycle, the source offers practical strategies such as physiological regulation, the 70% rule for making decisions more quickly, and setting dedicated time windows for worrying. The central idea is to move from abstraction to action , because mental clarity does not come before effort—it is often the result of it. Ultimately, the book presents self-mastery as training yourself to tolerate uncertainty rather than pursuing absolute certainty.