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Our ancestors used to sleep differently. If you looked back you would see them sleep in two parts. The inventions of the light bulb and the clock changed this old way of sleeping.
By Ainissa Ramirez4.8
3535 ratings
Our ancestors used to sleep differently. If you looked back you would see them sleep in two parts. The inventions of the light bulb and the clock changed this old way of sleeping.

14,337 Listeners

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