Lions Hunted at Night. So Why Did Your Ancestors Still Sleep?

Every night, you lose consciousness for 8 hours. You become completely vulnerable. Unable to run. Unable to fight. And yet — every single one of your ancestors did exactly the same thing. Why? The answer goes back millions of years. Before artificial light rewrote our biology. Before we had a name for what sleep actually does. Before we understood that your brain runs a literal cleaning cycle every single night — washing out the waste that causes Alzheimer's disease. In this video, we break down: → Why your body is hardwired to sleep at night (not during the day) → The ancient 2-phase sleep pattern humans lost in the 19th century → What happens to your brain after just ONE night of poor sleep → The 20,000-neuron clock inside your head controlling everything → Why waking up in the middle of the night might NOT be a disorder This isn't about sleep tips. This is about who you are — and what your body has been doing since before your species existed. Stay Curious. Stay Primally. ────────────────────────── 🔔 Subscribe for more mind-expanding facts about the human experience. ────────────────────────── #sleep #humanbiology #whywesleep #science #interestingfacts #primally #brainscience #evolutionarypsychology #sleepscience #didyouknow