Скачать или смотреть When Earth Had 60% Oxygen Humans Grew 9 Feet Tall (Here's Why) | HISTORY FOR SLEEP

What if Earth's atmosphere once contained 60% oxygen—and humans grew to 9 feet tall as a result? Ancient atmospheric records reveal a time when our planet's air was radically different, triggering explosive growth in every living organism. How did this transformation happen—and what does it tell us about human potential under extreme conditions?
In this deep dive, we explore the Carboniferous period's hyperoxic atmosphere that enabled giant insects, massive reptiles, and potentially towering human ancestors. Discover how oxygen concentration directly affects organism size, examine the geological evidence of Earth's atmospheric shifts over millions of years, and reveal why modern humans can never naturally reach these extreme heights—plus what would happen if oxygen levels spiked again today.
Your body is designed for today's 21% oxygen atmosphere. Every breath you take, every cell in your body, calibrated for this specific balance. Understanding Earth's oxygen history reveals the delicate environmental conditions that shaped human evolution and the fragile atmospheric equilibrium that sustains life as we know it.
Subscribe to discover more about Earth's ancient atmospheres, human evolution mysteries, and what time tried to bury. Next, explore why scientists hide the truth about giant skeletons found worldwide. Join our community unearthing the hidden history of our planet.
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