Can you survive without a head? What a stupid question, you might say. Any schoolchild would say it's impossible. However, one particularly lucky chicken managed it: it ran around its coop for another year and a half until it died accidentally. This event clearly demonstrates how much we don't know about our body, or more precisely, about its most complex organ—the brain. In this book, you'll find the ins and outs of our head, previously only available to doctors and medical students. You'll also learn why gray matter is gray; how coffee makes us mutants; why alcohol deprives us of the ability to speak clearly; and why, despite all the amazing abilities of our brain, we can barely remember anything a month after an important exam.