How are behavioral scientists increasingly involved to advise global decision-makers in the United Nations and elsewhere?" In 2020, the Psychology Coalition at the United Nations (PCUN) launched a bold new series of books, describing how evidence-based behavioral research is increasingly used by United Nations and other decision-makers, to address global issues. These issues reflect the UN's 17 Sustainable Development Goals (SDGs) for 2030-such as health, poverty, education, peace, gender equality, and climate change. This PCUN volume brings together 37 experts in 14 concise chapters, to focus on health in two parts: (1) a data-based overview of diverse trends in global health-such as COVID, opioids, dementia, and disabilities. (2) An examination of underlying issues in global health-such as race, gender, LGBTQ+, and health disparities (detailed below). The chapters are co-authored by leading global experts as well as "rising star" students from many nations--offering readers a concise overview of each topic, a glossary of key terms, study questions, and bibliography. This volume is suitable as a textbook for diverse courses in psychology, social work, cross-cultural and international studies.