Are supernatural beliefs and scientific attitudes in conflict over individual health behaviours? An empirical study on cancer-prevention behaviours among middle-aged and senior Chinese

The 'conflict thesis' between scientific and supernatural beliefs has attracted considerable intellectual interest. However, empirical studies examining its impact on health behaviours are scarce. To address this gap, drawing on the Health Locus of Control (HLOC) theory, we developed an integrated dual-pathway cognitive model to explore how these conflicting attitudes compete and how they influence health behaviours differently. In an online survey conducted with 673 middle-aged and older Chinese adults, we found that supernatural beliefs did not directly conflict with scientific attitudes. Instead, they competed in predicting cancer-prevention behaviours through their associated sub-beliefs - specifically, cancer fatalism and cancer controllability. Our findings do not support a root-level 'conflict thesis' but instead support a downstream-level 'conflict thesis'. This finding adds to the literature on the 'conflict thesis' and enhances our understanding of how conflict manifests in the cancer-prevention setting. The cultural specificity and generalizability of this study are discussed.