How Humans Became WHITE? History for Sleep скачать в хорошем качестве

How Humans Became WHITE? History for Sleep

How Humans Became WHITE? History for Sleep Ever wonder why human skin comes in so many different colors? The answer lies in an incredible evolutionary journey spanning thousands of years. In this Sleepy Time History episode, we explore the fascinating science behind skin color evolution. Starting from our African roots, we trace how humans adapted to different climates and environments as they migrated across the globe. Discover the critical role vitamin D played in human survival, the genetic mutations that changed everything, and how the agricultural revolution unexpectedly accelerated these changes. We'll examine how Europeans, Asians, and other populations developed their unique skin tones through different evolutionary paths. This isn't just about genetics and biology—it's about understanding our shared human history and what our appearance really tells us about where we came from. Perfect for learning history while you relax and drift off to sleep. Subscribe to Sleepy Time History for more fascinating explorations of human origins, evolution, and the incredible stories written in our biology. Recommended:    • Boring History for Sleep      • Mystery History for Sleep      • The Day Humanity Almost Vanished 70,000 Ye...      • Why Humans STOPPED Changing Physically | H...   Want to support our work? Consider becoming a member:    / @sleepytimehistoryyt   Chapters: 00:00 Introduction: The Mystery Written in Your Skin 05:18 Our African Origins: When All Humans Were Dark 16:32 The Great Migration: Leaving the Sunlit Homeland 28:46 The Vitamin D Crisis: A Matter of Life and Death 40:12 The Genetics of Skin Color: Mutations That Changed Everything 40:12 The Agricultural Revolution: An Unexpected Accelerator 1:04:50 Different Paths to Paleness: Europe, Asia, and Beyond 1:20:10 Other Adaptations: Hair, Eyes, and the Northern Package 1:33:16 The Modern World: When Adaptation Meets Migration 1:46:42 The Deep Meaning: What Skin Color Really Tells Us 2:00:15 Conclusion: Drifting Off with Our Shared Story Further Reading: Human Skin Pigmentation as an Adaptation to UV Radiation — Nina G. Jablonski & George Chaplin (Proceedings of the National Academy of Sciences, 2010) SLC24A5, a Putative Cation Exchanger, Affects Pigmentation in Zebrafish and Humans — Rebecca L. Lamason et al. (Science, 2005) Genetic Evidence for the Convergent Evolution of Light Skin in Europeans and East Asians — Heather L. Norton et al. (Molecular Biology and Evolution, 2007) Direct Evidence for Positive Selection of Skin, Hair, and Eye Pigmentation in Europeans over the Last 5,000 Years — Sandra Wilde et al. (Proceedings of the National Academy of Sciences, 2014) Note on Process & Accuracy: Every story on this channel begins with a deep respect for history. We act as directors and editors, using AI tools to help research and draft the script while we shape the narrative and verify facts. The narration comes from a digital replica of a professional voice actor, and the images are individually crafted artistic impressions using AI. Even with these tools, creating a story of this depth still takes hours of work. Please note that while the narrative is thoroughly based on historical research, its primary purpose is storytelling for entertainment and relaxation. As such, it is not intended to be used as a formal academic or scientific source. Thank you for your trust and support.