The primary motto of the book is to make the common man aware of the impact of changing lifestyle, which contributes to epigenetic changes thereby affecting the overall health of an individual. This book offers a thorough examination of the molecular underpinnings and clinical implications of epigenetics in cancer. It explores the potential for epigenetic therapeutics to target the epigenetic alterations that propel the onset, spread, and metastasis of cancer. Along with discussing the difficulties and future prospects, the book explores the most recent developments in epigenetic research, including biomarkers for diagnosis and prognosis. We believe that biology researchers, graduate students, scientists, technicians, and others interested in the biomedical application of epigenetics will find this book to be a fresh and useful resource. Additionally, we hope that this book will advance our understanding and open the door to the use of medications and undiscovered epigenetic targets for the good of humanity. It addresses the challenges in creating a more secure, sustainable, and affordable system for health care through consolidating the underpinning epigenetic platforms.