The field of epigenetics is revolutionizing our understanding of how environment shapes our genes. Dr. Susan Prescott is a leading childhood immunologist who shows how the application of epigenetics through Developmental Origins of Health and Disease (DOHaD) is changing scientific research and public health. A poor start to life is associated with an increased risk of disorders throughout life, including cardiovascular disease, obesity, type 2 diabetes and metabolic disturbances, osteoporosis, chronic obstructive lung disease, some forms of cancer, and some mental illnesses. The environment...