Each day ____ resets our circadian clock.
A) an alarm clock
B) morning sunlight
C) the feeling of hunger
D) evening sunlight

Name: Each day ____ resets our circadian clock. A) an alarm clock B) morning sunlight C) the feeling of hunger D) evening sunlight
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Question

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Morning sunlight is the cue that resets our circadian clock each day. This is because exposure to light in the morning suppresses the production of the hormone melatonin, which makes us feel sleepy, and helps us stay alert and awake during the day.

Each Day ____ Resets Our Circadian Clock