Why Some People Get Sick and Others Don't: A New Emergent-Field Model of Disease Susceptibility

This study investigates one of the most persistent medical mysteries: why two individuals with nearly identical genetics and environments can experience dramatically different health outcomes. Using a high-resolution emergent-field simulation, the work models how tiny, almost undetectable perturbations amplify into large-scale differences in system organization. The findings show that disease susceptibility does not originate solely from genes or environmental exposures, but from deeper coherence structures that govern how a system stabilizes or destabilizes under stress. Even with 99% genetic similarity and minimal environmental variation, individuals diverge due to differences in emergent field organization, producing distinct susceptibility profiles. This framework introduces a new lens for understanding illness—one rooted in whole-system dynamics rather than isolated biological factors. The results suggest new possibilities for prediction, risk assessment, and the foundational science of why some people become ill while others remain unaffected.