United States Department of Health and Human Services (HHS)The mission of the U.S. Department of Health and Human Services (HHS) is to enhance the health and well-being of all Americans, by providing for effective health and human services and by fostering sound, sustained advances in the sciences underlying medicine, public health, and social services. Discover HHS websites on topics such as tobacco, health care, mental health, AIDS, food safety, bullying, autism, LGBT health, and more.