What Did Ancient Humans Do at Night? - YouTube
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Tonight, when you flip a light switch, you probably won’t think twice about it. But for 99.9% of human history, that switch didn’t exist. For over 300,000 years, your ancestors spent half their lives in a darkness so thick they couldn't see their own hands—and it turns out, that darkness made us who we are. In this video, we explore how the discovery of fire didn't just keep us safe from predators; it literally restructured the human brain. We dive into the fascinating "lost history" of sleep, revealing that the eight-hour block we struggle to achieve today is actually a modern invention.…
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