Stronger social relationships are associated with lower mortality risk.

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.

Holt-Lunstad, Smith, and Layton meta-analyzed prospective studies and found that stronger social relationships were associated with a greater likelihood of survival across follow-up.

The meta-analysis is observational and does not establish that social connection alone causes longer life, that more relationships are always better, or that hostile or burdensome relationships provide the same benefit as supportive ones.

The book uses this association to establish social relationships as health-relevant conditions. Its stronger claim about community as biological infrastructure is authorial synthesis.

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.