I tell you when to wake and when to sleep, moving with the sun. What am I?
Category: Science · Difficulty: medium
Hint: I help regulate sleep patterns.
Answer
Circadian Rhythm
Explanation
Circadian rhythms are physical, mental, and behavioral changes that follow a daily cycle, influenced by light.
This is a medium science riddle — a moderate challenge for most people. The answer is Circadian Rhythm.
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