Petra feels really alive and an overwhelming sense of well-being after her 4-mile morning run. we could say petra has entered a(n) of consciousness after exercise.

Altered

Explanation:

Altered state of consciousness is defined as change occurring in mental state of an individual in the conscious state that makes them different from normal state of mind.This situation can occur in the form of day-dreaming , deprived from sleep etc .

Altered state of mind in awareness can deviates the mind from actual scenario to imaginary or dreamy scene .It changes the expression ,behavior , thinking ,awareness etc of a individual, awareness

Thus, according to the situation ,Petra has entered the altered stage of consciousness as she completes her morning run and exercise which makes her feel more alive .This defines her expression and mind tendency is changed after exercise.

perspiration and respiration.