Whether you are looking to interpret and evaluate existing health research, or conduct your own, this book discusses every step of the research process, from theory and ethics to data collection, analysis and dissemination. Clear, engaging and drawing on diverse examples from various health disciplines - from public health and nursing to occupational health and nutrition - this fifth edition: Offers detailed guidance on synthesising and integrating evidence, with a new chapter on systematic reviews. Fully embeds material on the effective use of digital and social media research in health across all chapters. Showcases what health research looks like in practice, with 28 case studies from across the globe. Ideal for undergraduates, postgraduates and beginner researchers in health and related fields, this book is a vital resource for building your confidence in understanding and doing qualitative research.