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).

Question

BlackTom AI · Accepted Answer

Consider the question about cortisol patterns across a typical day. The two blanks must reflect the standard diurnal rhythm.
Option 1: 'lowest, fluctuate up and down' would imply cortisol is at its minimum in the morning and varies unpredictably during the day. This contradicts the well-established pattern where cortisol peaks shortly after waking. Therefore this option is incorrect.
Option 2: 'highest, decline' matches the known circadian rhythm: cortisol is at its highest levels in the morning upon waking and then gradually declines as the day progresses. This aligns with adrenal physiology and typical sleep–wake hormonal patterns.
Option 3: 'lowest, rise' would suggest cortisol is lowest in the morning and increases during the day, which contradicts the morning peak concept and the downward trend that follows. This makes it incorrect.
Option 4: 'highest, fluctuate up and down' proposes a morning peak followed by unpredictable fluctuations rather than a steady decline. While cortisol does decline overall, it does not wildly fluctuate in a way that contradicts the general downward trend, making this option inaccurate in the context of the straightforward daily pattern described in the question.
In summary, the only option that faithfully represents the standard morning peak followed by a gradual daytime decline is the second option.

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).Single choice

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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).Single choice

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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].

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

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?

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

More Practical Tools for Students Powered by AI Study Helper

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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).Single choice