An epidemic of allergies is spreading around the world. One billion people suffer from allergic diseases such as asthma, hay fever, eczema and food allergies. But this is just the tip of the iceberg. In this ground-breaking book, award-winning doctor Leo Galland reveals the shocking rise of hidden allergies that lead to weight gain, fatigue, brain fog, depression, joint pain, headaches, ADHD, digestive problems and much more. Astonishing new research shows how each of these is linked to the immune imbalance that is at the root of allergy. A brilliant clinician, Dr Galland has unlocked the power of this breakthrough science to help thousands of patients who have struggled with mysterious symptoms to answer the question: 'Doctor, what's wrong with me?' Here, he is joined by his son, Jonathan Galland JD, a passionate health writer and environmental advocate, in exposing the truth that just as the earth's environment is out of balance, our bodies are out of balance. The modern world, with