Worry and rumination can prolong stress-related physiological activation beyond the original stressor.

This page isolates one claim from the wider argument of The Human OS Manual.

The classification describes the evidence supporting this claim, not the Human OS framework as a whole.

Brosschot, Gerin, and Thayer review the perseverative cognition hypothesis, in which worry and rumination extend cognitive representation of stressors and are associated with prolonged physiological activation.

This does not mean that all reflection, planning, memory, or deliberate thought interferes with recovery.

The final Notes state this boundary explicitly. The public claim therefore uses worry and rumination rather than the manuscript’s broader phrase ‘mental rehearsal.’

Developing findings or mechanisms that help explain possibility without establishing universal outcomes or direct real-world effects.

Sources are listed according to the role they play in this claim. One source may provide direct support, another may explain a mechanism, establish a limitation, or prevent an interpretation from becoming broader than the evidence allows.

The printed book preserves the claim inside the argument that gives it meaning. These references connect the current digital record to the first-edition evidence trail.

This claim connects to the following parts of the Human OS architecture. The module labels locate the claim inside the framework; they do not imply that the research source validates the architecture itself.