From exercise guidelines to disaster response, Health and Human Services (HHS) takes care of people and their health. The agency's 300-plus programs cover everything from immunizations and food safety to Medicare and emergency preparedness. It also provides services for low-income families, Head Start (pre-school), domestic violence and child abuse prevention, and substance abuse treatment and prevention. HHS uses about a quarter of all federal funds; its 2013 budget is more than $940 billion. Its agencies include
National Institutes of Health
Food and Drug Administration
Centers for Disease Control
. Though its roots go back to 1798, HHS was officially created in 1953 by President Dwight Eisenhower.