Old Brain-New Brain

Video Overview & Insights

With its hundred million neurons or nerve cells, our human brain has evolved to become one of the most sophisticated things in the entire universe. But a closer look at this impressive organ reveals that, at its core, is still an ancient reptilian brain. Of course, its various newer parts gradually formed over millennia, building it up in layers to what it is today. But, in the process, has something of an evolutionary glitch occurred that makes us prone to circular thoughts and emotional difficulty?