Skip to main content

Physiological Reserves

Meaning

Physiological Reserves represent the excess functional capacity inherent in the body’s organ systems that can be rapidly mobilized to maintain homeostasis and withstand acute or chronic stressors beyond normal operating demands. These reserves, often found in the kidney, liver, and cardiovascular system, act as a buffer against aging and disease. The decline of these reserves is a primary driver of frailty and increased vulnerability to pathological events.