Average Biological Age

The relationship between growth rate and average biological age is not governed by a simple universal monotonic rule. Higher division-rate parameter alpha lowers average biological age in the formal proposition described by the paper. Average biological age generally increases with constant harmful-protein inflow in the displayed numerical examples. Average biological age is computed from the stable biological-age distribution and interpreted as population aging load. The stable distributions and growth-rate curves are model outputs under selected parameters rather than direct empirical measurements.