The National Academies of Sciences, Engineering, and Medicine is a collective of three organizations that provide expert advice on issues related to science, engineering, and health. Established in 1863, it aims to inform public policy and advance knowledge through research and analysis. The Academies consist of the National Academy of Sciences, the National Academy of Engineering, and the National Academy of Medicine. These organizations conduct studies, publish reports, and hold workshops to address critical challenges facing society. They bring together experts from various fields to ensure that their recommendations are based on the best available evidence and scientific understanding.