With over 17,000 diseases and countless toxins in our environment, it borders on a miracle that our body keeps us alive. As long as it does not self-destruct, whether through cancer or autoimmune diseases. The internationally renowned biomedical researcher Professor John Tregoning explains how we even manage to live longer despite all the adversities. By working his way through the human body step by step, he explores from organ to organ the most likely ways in which our body can kill us: from inherited genetic predispositions to heart attacks. He puts the numerous life-prolonging promises of the health industry to the test and reveals what actually helps to lead a longer and healthier life.