Just over 125,000 years ago, humanity nearly went extinct until a dramatic shift occurred--fossil records suggest that suddenly Homo sapiens displayed new behaviors like tracking the tides and eating the nearby oysters. Before long, they'd pulled themselves back from the brink of extinction. Just over 125,000 years ago, humanity nearly went extinct until a dramatic shift occurred--fossil records suggest that suddenly Homo sapiens displayed new behaviors like tracking the tides and eating the nearby oysters. Before long, they'd pulled themselves back from the brink of extinction. In A History of the Human Brain, Bret Stetka takes us on this far-reaching journey, explaining exactly how our most mysterious organ developed. From the brain’s improbable, watery beginnings to the marvel that sits in the head of homosapiens today, Stetka covers an astonishing progression, even tackling future brainy frontiers such as epigenetics and CRISPR. Bret Stetka is an Editorial Director at Medscape.com—the professional division of WebMD.com. He is a non-practicing physician and a freelance health and science journalist for a variety of print and online publications. He is a graduate of the University of Virginia School of Medicine.  Want better health and nutrition? Now you can get personalized supplement recommendations and custom vitamin packs delivered to your door! Go to PersonaNutrition.com/Roizen and take your free assessment and get 50% off your order today. - sponsor   Bonus How Your Diet Affects Your Risk for Cancer