DNA Reveals Why Tibetans Can Survive Extreme Altitudes скачать в хорошем качестве

DNA Reveals Why Tibetans Can Survive Extreme Altitudes

DNA Reveals Why Tibetans Can Survive Extreme Altitudes For most humans, living at extreme altitudes is dangerous. The thin air of the Tibetan Plateau contains far less oxygen than at sea level, causing altitude sickness, fatigue, and even life-threatening conditions. Yet millions of Tibetans have lived in these harsh environments for thousands of years. So how do they survive where most humans cannot? Modern genetic research has revealed that Tibetans carry a unique genetic adaptation that allows their bodies to function in extremely low-oxygen environments. Scientists discovered that a variation of the EPAS1 gene helps Tibetans regulate oxygen in their blood without producing dangerously thick blood. Even more surprising, studies suggest this genetic trait may have been inherited from an ancient human species known as the Denisovans, who interbred with early human populations tens of thousands of years ago. In this documentary we explore the science behind Tibetan DNA, how ancient human evolution shaped this extraordinary adaptation, and what it reveals about the hidden history of our species. In this video we explore: Tibetan genetic adaptations to high altitude The EPAS1 gene and oxygen regulation Denisovan DNA and ancient human interbreeding Human evolution in extreme environments The history of the Tibetan Plateau If you enjoy documentaries about ancient DNA, human evolution, and hidden genetic history, subscribe for more videos uncovering the secrets written in our DNA.