Human Restoration Theory: Breathing, Load, and State Regulation v0.1

Breathing, Load, and State Regulation v0.1 is the first Bridge Paper in the Human Restoration Theory (HRT) corpus. It treats breathing as a measurable mechanical, metabolic, perceptual, and state-dependent context for task performance. The paper examines how respiratory demand, gas exchange, respiratory timing, respiratory-related muscle activity, breath availability, and recovery may constrain or compete with candidate HRT relations involving neuromuscular organization, functional reliability, and cost. The paper does not propose a universal postural pathway, a preferred breathing pattern, a diagnostic marker, or a breathing intervention. It distinguishes source-field evidence, bounded HRT interfaces, candidate predictions, competing explanations, and falsification rules. This paper extends the HRT Core Architecture and is governed by the corpus measurement, mechanics, reliability, developmental, and chronicity architectures.