This guide is for anyone who experiences stress, ranging from parents and other carers to health professionals working in dangerous situations. It is for both people who flee war, losing all they have, and well protected people living in communities at peace. Anyone living anywhere can experience high levels of stress. Informed by available evidence and extensive field testing, the guide provides information and practical skills to help people cope with adversity. While the causes of adversity must be addressed, there is also a need to support people’s mental health. I hope that you will find this WHO guide useful, and that it helps all readers in their efforts to cope with stress.