In the 'Color Codes of Awareness', what is the primary physiological state associated with the 'Yellow' condition, beyond mere relaxed alertness?

In the 'Color Codes of Awareness', the 'Yellow' condition represents a state of heightened sensory processing, specifically involving a measurable increase in the individual's baseline cortisol levels. Cortisol is a steroid hormone that, in moderate amounts, enhances alertness and prepares the body for potential action. While 'Yellow' is described as 'relaxed alertness', the increased cortisol indicates a physiological priming of the sympathetic nervous system, also known as the 'fight or flight' system. This means that, compared to the 'White' condition (unaware and with normal cortisol), the individual in 'Yellow' has faster reaction times, increased focus, and a greater capacity to quickly transition to a defensive posture should a threat emerge. This physiological state goes beyond simply being 'relaxed and alert'; it's a state of readiness mediated by hormonal changes that prepare the body for immediate response.