The hilarious, myth-busting survival guide to the human body from TikTok's favourite General Surgeon. Though the odds are stacked against us, the human body has an extraordinary tendency to survive. Here, Dr Karan Rajan explains the weird and wonderful bodily functions that keep us going, and offers practical advice to help you thrive. Full of everyday health hacks to worry less and live better, This Book May Save Your Life will teach you: How to sleep better with the 10-3-2-1 trick The dangers of plucking your nose hairs What your fingernails say about your health The Jedi mind tricks for dealing with pain And why you should never hold in a fart.