Q
Why are some people morning people and others night owls?
A
Expert Answer
Chronotype is partly genetic (involving PER3, CLOCK, and other genes), partly age (teenagers tend toward eveningness), and partly environment. Night owls may have slightly different circadian rhythms. Society's early schedules disadvantage natural night owls.
Key Insight
Chronotype is partly genetic (involving PER3, CLOCK, and other genes), partly age (teenagers tend toward eveningness), and partly environment.
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