why we all sleep at night time ?
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The energy conservation theory of sleep suggests that a main purpose of sleep is to reduce a person's energy use during times of the day and night, when it's inconvenient and less efficient to hunt for food.
Answered by
1
Answer:
The energy conservation theory of sleep suggests that a main purpose of sleep is to reduce a person's energy use during times of the day and night, when it's inconvenient and less efficient to hunt for food.
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