These are the kinds of questions you would only ask Google. The stuff you’re genuinely curious about, but that basic dignity prevents you from asking someone face to face. The most traditional approach to this problem is to drink Martinis until you can no longer feel any shame, and corner a doctor at a dinner party. Luckily there is a more dignified way. This book is the equivalent of cornering hundreds of doctors and answers all the hard questions “a friend of yours” may be wondering about like “Can I lose my contact lens inside my head forever?“, and “Does it really take 7 years to digest chewing gum?“, or “Why is poo brown?“.