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Functional Ceiling

Meaning

The maximal attainable level of physiological performance, metabolic capacity, or biological resilience that an individual can achieve, often limited by genetic predispositions, cumulative cellular damage, or the constraints of the endocrine system. This ceiling represents the upper limit of a person’s healthspan potential under current biological and therapeutic conditions. It is a concept used in precision medicine to define the boundary of achievable optimization. Understanding this limit helps manage patient expectations and guides therapeutic intensity.