Can you change your sleeping schedule? 8/26 截止

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Daylight helps set your ___ rhythm, or body clock.

• city

• circle

• circadian

• circus

Tradition ___ that the youngest member should go first.

• differentiates

• dictates

• defends

• discusses

The sound and picture have to ___ perfectly.

• syndrome

• synchronization

• synchronous

• synchronize

What is the duration of night owls‘ cortisol peak after getting up?

• 10 minutes

• 20 minutes

• 30 minutes

• 40 minutes

When will your circadian system start producing sleep-inducing melatonin before you go to bed?

• 1 hour

• 2 hours

• 3 hours

• 4 hours