Chemical substances. So unclear, invisible, and sometimes capable of killing us. We encounter them in everyday life, but we often don’t even know what danger they might pose to us. Toxins in food, contaminated water, unsafe substances in medicines, and poisonous compounds even in the air. What poisons exist in nature, and which were created by people? What substances destroyed thousands of people, and which ones healed them? Where does death lurk, and how can you protect yourself from it? You’ll find the answers to these questions in this book.