The Ancient Way to Sleep
Science Underground
English - June 14, 2020 09:00 - 2 minutes - 1.82 MB - ★★★★★ - 35 ratingsNatural Sciences Science Education earth science astronomy biology chemistry physics stem Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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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.