Recovery from work can involve psychological detachment, relaxation, mastery, and control during leisure time.

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.

Sonnentag and Fritz developed and validated measures distinguishing four recovery experiences during leisure time: psychological detachment from work, relaxation, mastery, and control.

The study does not show that these four experiences exhaust all forms of recovery, or that time away from work is biologically insufficient whenever one of the four is absent.

This is an occupational-psychology recovery construct. The book extends the distinction into physiological closure and recovery across other forms of demand; that extension remains authorial.

Supported by appropriate human studies, major reviews, trials, cohort research, or converging evidence. The strength of the category does not remove population, dose, timing, or context limitations.

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.