Definition
The integrated sum of mental, physical, and chemical stress running continuously. All three forms converge into a single load variable. The body does not distinguish stress by source — it responds to accumulated signal.
Governing Form
Σ ↑ ⟹ Φ(x) ↑
Stress amplifies system deviation. Elevated load prevents convergence.
Role
Primary input variable. The master load term.
State Conditions
Activation
Mental stress, physical overload, chemical instability, blood sugar volatility.
Suppression
Reduced by parasympathetic dominance, metabolic pause, sleep, signal correction.