The book will elucidate the scientific aspects of cancer and will focus on assisting patients, doctors, and families in coping with cancer-related lifestyles, including the psychological impact of the condition during challenging times. Through a comprehensive questionnaire regarding patients' emotions, we will explore the full spectrum of human feelings accompanying the diagnosis and coping with chemotherapy pain and dietary adjustments. Upon receiving a cancer diagnosis, patients may experience a range of emotions, such as shock, fear, anxiety, and sadness. It's important for patients to recognize and understand these emotions and seek support from family, friends, and therapists. As patients gain more knowledge about their treatment plan, they may begin to feel more confident in managing their condition. Reading this book may help patients develop resilience against distress and support their treatment journey. Therefore, dear patient, despite our pain, let us be grateful for others. I am committed to sharing my scientific knowledge, personal journey, and patient experiences with you honestly and transparently, and I apologize if I fall short of perfection in my work.