Health care (or healthcare) is the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in humans. Health care is delivered by practitioners in medicine, chiropractic, dentistry, nursing, pharmacy, allied health, and other care providers. It refers to the work done in providing primary care, secondary care and tertiary care, as well as in public health.

Access to health care varies across countries, groups and individuals, largely influenced by social and economic conditions as well as the health policies in place. Countries and jurisdictions have different policies and plans in relation to the personal and population-based health care goals within their societies. Health care systems are organizations established to meet the health needs of target populations. Their exact configuration varies from country to country. In some countries and jurisdictions, health care planning is distributed among market participants, whereas in others planning is made more centrally among governments or other coordinating bodies. In all cases, according to the World Health Organization (WHO), a well-functioning health care system requires a robust financing mechanism; a well-trained and adequately-paid workforce; reliable information on which to base decisions and policies; and well maintained facilities and logistics to deliver quality medicines and technologies.

Kathleen Sebelius (pronounced /sɨˈbiːliəs/; née Gilligan, born May 15, 1948) is an American politician currently serving as the 21st Secretary of Health and Human Services. She was the second female Governor of Kansas from 2003 to 2009, the Democratic respondent to the 2008 State of the Union address, and chair-emerita of the Democratic Governors Association.

Sebelius was born and raised in a Roman Catholic family in Cincinnati, Ohio. She attended the Summit Country Day School in Cincinnati and graduated from Trinity Washington University in Washington, D.C. with a B.A. in political science. She later earned a Master of Public Administration degree from the University of Kansas. She moved to Kansas in 1974, where she served for eight years as a representative in the Kansas Legislature and eight years as Insurance Commissioner before being elected governor.

Sebelius is the daughter of former Democratic Ohio Governor John J. Gilligan, and thus they became the first father/daughter governor pair in the United States after her election. Following passage of the Health Care and Education Reconciliation Act of 2010, she pointed out another father-daughter connection: her father had been in the House of Representatives when Medicare was originally passed in 1965.

Ronald Ernest "Ron" Paul (born August 20, 1935) is an American politician who has been the U.S. Representative for Texas's 14th congressional district, which includes Galveston, since 1997, and a three-time candidate for President of the United States, as a Libertarian in 1988 and as a Republican in 2008 and currently 2012. He is an outspoken critic of American foreign and monetary policies, including the Military–industrial complex and the Federal Reserve, and is known for his libertarian-leaning views, often differing from his own party on certain issues.

A native of Pittsburgh, Pennsylvania, Paul is a graduate of Gettysburg College and Duke University School of Medicine, where he earned his medical degree. He served as a medical officer in the United States Air Force from 1963 until 1968. He worked as an obstetrician-gynecologist from the 1960s to the 1980s, delivering more than 4,000 babies. He became the first Representative in history to serve concurrently with a child in the Senate when his son Rand Paul was elected to the United States Senate for Kentucky in 2010.

Daniel Kraft, M.D. is an NIH funded faculty member affiliated with Stanford. He was on clinical faculty with the UCSF pediatric bone marrow transplantation service and serves as the medicine track chair for Singularity University where he is also executive director for the FutureMed executive program.

Daniel is the founder of StemCor Systems and founder and consulting chief medical officer for RegenMed Systems, a clinical-stage medical device company that develops tools to enable regenerative stem cell therapies. He is the inventor of the MarrowMiner, a minimally invasive device for the harvest of bone marrow derived stem and progenitor cells. This device is being commercialized by Hospira Inc. for use in bone marrow transplantation and by RegenMed Systems for use in regenerative medicine.

Dr. Kraft received a degree in Biochemistry from Brown University and his M.D. from the Stanford University School of Medicine. He completed the Harvard combined residency in Internal Medicine and Pediatrics at the Massachusetts General Hospital and the Boston Children's Hospital, before returning to Stanford for clinical fellowship training in hematology/oncology and bone marrow transplantation and a post-doctoral fellowship with Dr. Irving Weissman. Dr. Kraft is board certified in both Pediatrics and Internal Medicine.

Milton Friedman (July 31, 1912 – November 16, 2006) was an American economist, statistician, and author who taught at the University of Chicago for more than three decades. He was a recipient of the Nobel Memorial Prize in Economic Sciences, and is known for his research on consumption analysis, monetary history and theory, and the complexity of stabilization policy. As a leader of the Chicago school of economics, he influenced the research agenda of the economics profession. A survey of economists ranked Friedman as the second most popular economist of the twentieth century behind John Maynard Keynes, and The Economist described him as "the most influential economist of the second half of the 20th century…possibly of all of it."

Friedman's challenges to what he later called "naive Keynesian" (as opposed to New Keynesian) theory began with his 1950s reinterpretation of the consumption function, and he became the main advocate opposing activist Keynesian government policies. In the late 1960s he described his own approach (along with all of mainstream economics) as using "Keynesian language and apparatus" yet rejecting its "initial" conclusions. During the 1960s he promoted an alternative macroeconomic policy known as "monetarism". He theorized there existed a "natural" rate of unemployment, and argued that governments could increase employment above this rate (e.g., by increasing aggregate demand) only at the risk of causing inflation to accelerate. He argued that the Phillips curve was not stable and predicted what would come to be known as stagflation. Friedman argued that, given the existence of the Federal Reserve, a constant small expansion of the money supply was the only wise policy.