Why You Wake Up at 3 AM (It’s Not Insomnia)

You wake up in the middle of the night and can't fall back asleep. You think something is wrong with you, but your brain is actually just executing an ancient survival program. Discover why eight hours of continuous sleep is an industrial myth, what "biphasic sleep" really means for your ancestors, and how Thomas Wehr's experiment proved that your body still remembers the rhythms of the prehistoric savanna. Your insomnia is not a glitch; it is an evolutionary heritage. If this video helped you understand your brain, hit the like button, comment below what time you usually wake up, and subscribe for more deep dives into human history. #sleep #insomnia #evolution #psychology #science #health #brain #history #anthropology #selfimprovement #facts #interesting #education #biology #circadianrhythm #melatonin #stress #anxiety #ancienthumans #explainer