Just before the start of a marathon, the levels of corticol in the runners' blood will probably:
A) be higher than normal.
B) be lower than normal.
C) maintain the regular level.

Question

Quizplus · Accepted Answer

Just before the start of a marathon, the levels of cortisol in the runners' blood will probably be higher than normal due to the anticipation and stress associated with the upcoming physical exertion and competition. Cortisol is a stress hormone that increases in response to physical or psychological stress.

Just Before the Start of a Marathon, the Levels of Corticol