If the prehistoric had been couch potatoes, humans would have never evolved. Because they were always on the go, always moving, our ancestors were able to adapt and evolve. Today, however, we spend most of our time on earth stuck in front of our computers, sitting on a chair and moving nothing but our fingers. And while at first, this might seem like progress, in reality, our lack of activity can have catastrophic effects on our brains.
As you will learn from the book, our DNA is still telling our brain that we should move. As a result, in order to remain healthy and to function normally, the brain requires constant physical activity.