<p>Our brains evolved to solve the survival problems of our Stone Age ancestors, so when faced with modern day situations that are less extreme, they often encounter a mismatch. Our primitive brains put us on the wrong foot by responding to stimuli that - in prehistoric times - would have prompted behaviour that was beneficial. If you''ve ever felt an anxious fight or flight response to a presenting at a board meeting, equivalent to facing imminent death by sabre-toothed tiger, then you have experienced a mismatch.<br><br><i>Mismatch</i> is about the clash between our biology and our culture. It is about the dramatic contrast between the first few million years of human history - when humans lived as hunters and gatherers in small-scale societies - and the past twelve thousand years following the agricultural revolution which have led us to comfortable lives in a very different social structure. Has this rapid transition been good for us? How do we, using our primitive minds, try to su