Meaning
Physical strain placed on the circulatory system provides a quantifiable index of the exertion required by high-stakes decision making. This cardiovascular cost represents the metabolic energy required to maintain blood flow and pressure during long periods of cognitive effort. It measures the difference between resting heart activity and the heightened state demanded by professional load.
High costs over long periods lead to structural changes in the heart muscle and arterial walls.
Metabolic Demand
The heart must pump more blood to the brain and muscles even when the person is physically stationary. This increase in cardiovascular cost is driven by the sympathetic nervous system as it responds to perceived risks. The body consumes glucose and oxygen at a higher rate to maintain this state of readiness.
Such demand reduces the total energy available for other biological processes like digestion and tissue repair.
Hemodynamic Burden
Measurement of the increase in blood pressure provides data on the load placed on the vascular walls. This hemodynamic burden increases the risk of vessel damage and inflammation. When a founder stays in this state for several years, the arteries may stiffen to compensate for the constant pressure.
This change is permanent and increases the work the heart must do every day to circulate blood.
Vascular Constraint
There is a point where the circulatory system can no longer compensate for the high energy requirements of the brain. When this boundary is hit, the person may experience dizziness or a loss of concentration. The cost is measured in the hours of productivity lost to physical symptoms.
Eventually, the heart muscle itself may show signs of fatigue, leading to a mandatory reduction in activity levels.
