Quiz – Master Your Clock

Question 1 of 6

1. Question

What hormone does morning sunlight help your body produce to feel alert?

Cortisol

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Melatonin

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Adenosine

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Insulin

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Question 2 of 6

2. Question

What does blue light in the evening suppress?

Melatonin

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Cortisol

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Vitamin D

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Adrenaline

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Question 3 of 6

3. Question

How soon after waking is morning light most helpful?

Within an hour of waking

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Only after noon

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Right before bed

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Once a week

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Question 4 of 6

4. Question

Keeping the same sleep and wake times for how long can improve sleep quality?

Two to four weeks

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A few minutes

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Ten years

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One night

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Question 5 of 6

5. Question

Match each habit with its effect on your body clock.

Sort elements

Boosts cortisol and resets the clock
Trains the circadian rhythm
Suppresses melatonin
Supports predictable energy

Morning light exposure

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Consistent sleep schedule

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Evening screen time

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Regular wake time

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Question 6 of 6

6. Question

What is the name of the roughly 24-hour internal cycle controlling energy and sleep timing?

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