Biologically/circadian rhythm directs that the highest level of cortisol should be around what time?

Question

BlackTom AI · Accepted Answer

When considering the circadian rhythm of cortisol, the hormone peaks shortly after waking. 
Option a. 8am: This aligns with the typical early-morning cortisol surge, often called the cortisol awakening response, peaking within 30-45 minutes after waking and then gradually declining through the day. So this choice correctly identifies the highest level occurring in the morning around 8am for many individuals.
Option b. 12pm: Around noon cortisol levels are generally lower than the morning peak and are part of the gradual daytime decline after the morning surge; this time does not represent the highest moment of cortisol in the circadian cycle.
Option c. 2pm: In the early afternoon, cortisol remains relatively lower compared to the morning peak and continues to decrease as the day progresses; this is not the peak time.
Option d. 7pm: By the evening, cortisol levels are typically at a trough or low point relative to the morning peak, making 7pm an unlikely time for the highest cortisol level. In summary, the correct understanding is that cortisol reaches its maximum in the morning, around 8am, with a gradual decline afterward.

Biologically/circadian rhythm directs that the highest level of cortisol should be around what time?单项选择题

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Biologically/circadian rhythm directs that the highest level of cortisol should be around what time?单项选择题

类似问题

27. Our bodies need a ____ that it’s time to sleep.

Question 27. Complete the following sentences with NO MORE THAN TWO WORDS OR A NUMBER from the lecture. 27. Maintaining a strict seven-day timetable for sleep results in a regular Answer Question 21[input].

The rhythm is a 24-hour cycle that helps regulate many physiological systems in the body.

If you fly from the United States to Europe, you will likely find yourself tired in the middle of the day and wide wake at night. Why is this?

Question 27. Complete the following sentences with NO MORE THAN TWO WORDS OR A NUMBER from the lecture. 27. Maintaining a strict seven-day timetable for sleep results in a regular Answer Question 21[input].

What is the term for the 24-hour cycle that regulates sleep and wakefulness?

Under normal conditions, cortisol levels are __________ in the morning when we wake up and then ___________ throughout the day. (Select the answer that fills in the two blanks in the correct order).

Melatonin release from the pineal gland is stimulated by [Fill in the blank], and inhibited by [Fill in the blank], .

更多留学生实用工具

希望你的学习变得更简单

Under normal conditions, cortisol levels are in the morning when we wake up and then _ throughout the day. (Select the answer that fills in the two blanks in the correct order).