Lifestyle diseases and related conditions present a major healthcare challenge for children, posing a significant threat to their well-being. The Editors have compiled chapters to present a multicentric approach to the subject. This book is an insightful reference on lifestyle diseases and its management in adolescents. It includes ten chapters with a focus on systemic disorders that are linked to lifestyle issues. Topics in this volume include gut microbiome and gastrointestinal disorders, neurological disorders, dental diseases, respiratory diseases and allergies associated with pesticides, cancer, hypertension, cardiovascular disorders, diabetes, polycystic ovarian syndrome, and common infectious diseases. The book highlights the risk factors and determinants of these diseases, and where an immediate intervention is needed. An updated understanding of the diseases with scientific references gives readers crucial information for setting the groundwork for long-term public health policy formulation. This book serves as a primary resource for scholars and trainees in nursing, medical (pediatrics and endocrinology) and paramedical courses who are required to understand lifestyle diseases with a focus on adolescents. Readers and professionals in public health, life-sciences and related disciplines can also use this as a secondary reference.