IDSC e IDCS: doppio indice di salute cognitiva sociale e deterioramento cognitivo-sanitario

Societal crises—ranging from epidemics of mental illness and chronic disease to democratic fragility and disinformation—reflect deeper cognitive vulnerabilities that traditional metrics fail to capture. We introduce the IDSC–IDCS framework, a dual-index system measuring societal cognitive health (Index of Cognitive Sanity, IDSC) and cognitive-sanitary deterioration (IDCS), integrated with the LEXCOG model, which separates explicit linguistic expressions (LEX) from implicit cognitive patterns (COG). Central to this architecture is the variable K (Knowledge), defined as purpose-driven, resilient cognition. Using longitudinal data (2010–2025) from 38 countries, we validate IDCS as a predictor of health outcomes including cancer incidence (r = 0.68, p < 0.01), suicide (r = 0.73), and obesity (r = 0.71), while IDSC correlates positively with democratic stability and educational resilience (r = 0.64). LEXCOG analysis uncovers misalignments between stated intentions and underlying cognitive dynamics. A case study of South Korea demonstrates that targeted resilience programs reduced IDCS by 18% over a decade. Our findings establish cognitive health as a measurable, modifiable determinant of societal well-being and position K as a critical policy lever to enhance public health, governance, and collective resilience.