Is it normal to become extremely tired in dim lighting?

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2 Comments

Today in class, I was wide awake and after the lights turned off for the projector I got so damn sleepy. Every time the lights turn off, I get sleepy. Today I dozed off for about 5 minutes.

Voting Results
81% Normal
Based on 36 votes (29 yes)
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Comments ( 2 )
  • TightRedShirtPurpleSkinnyJeans
    12 years ago

    It's normal, when the light dims you release a hormone which causes you to feel tired. It's because humans are inherently diurnal, not nocturnal.

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  • InvadingPotatoLeader
    12 years ago

    Yes, when the lights go off your body releases hormones that cause you to feel tired.
    Reason being humans are not nocturnal, but diurnal.

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