Que faisaient nos ancêtres la nuit ? (La réponse va vous surprendre)

For 300,000 years, your ancestors slept twice a night. That 2 a.m. wake-up call that makes you anxious today? For them, it was perfectly normal. In this video, we travel back in time to discover what prehistoric humans actually did at night—before fire, before candles, before the electric light bulb. From the Chauvet and Lascaux caves painted by flame, to modern scientific experiments that have rediscovered "first sleep" and "second sleep," you'll see human sleep in a whole new light. On the agenda: How fire restructured the human night and created a circle of safety against predators Why the campfire was humanity's first theater, first school, and first church The forgotten discovery of the first and second sleep stages (and what people did in between) The 1992 experiment that proved our bodies still know this ancient rhythm How Louis XIV and the light bulb erased an entire phase of human consciousness Why your "insomnia" might be the most human thing you can experience A dive into prehistory, human evolution, and the science of sleep—to understand where we came from, and what we traded for a simple light switch. 🔔 Subscribe for more stories about our ancestors and human evolution. 💬 Do you ever wake up in the middle of the night? Share your experience in the comments. ――――――――――――――――――― SOURCES: Mastery of fire (~1 million years ago) — Berna et al., 2012, PNAS (Wonderwerk Cave) FIRECOTT CONVERSATIONS — Wiessner, 2014, PNAS (Ju/'hoansi) First and second sleep — Ekirch, 2001, American Historical Review Darkness experience / biphasic sleep — Wehr, 1992, Journal of Sleep Research Melatonin reset — Wright et al., 2013, Current Biology Lighting of Paris under Louis XIV (1667); Etymology of "curfew" — Historical Archives ――――――――――――――――――― #prehistory #humanevolution #sleep #history #ancestors