Health care

Health care, or healthcare, is the prevention, treatment, and management of illness, and the preservation of health through services offered by the medical, dental, nursing, and allied health professions. Health care embraces all the goods and services designed to promote health, including “preventive, curative and palliative interventions, whether directed to individuals or to populations”.[1] The organised provision of such services may constitute a health care system. This can include specific governmental organizations such as, in the UK, the National Health Service or a cooperation across the National Health Service and Social Services as in Shared Care. Before the term health care became popular, English-speakers referred to medicine or to the health sector and spoke of the treatment and prevention of illness and disease.

In most developed countries and many developing countries health care is provided to everyone regardless of their ability to pay. The National Health Service, established in 1948 by Clement Atlee's Labour government in the United Kingdom, was the world's first universal health care system provided by government and paid for from general taxation. Alternatively, compulsory government funded health insurance with nominal fees can be provided, as in Italy. Universal health care contrasts to the systems like health care in the United States or South Africa, though South Africa is one of the many countries attempting health care reform.[2] The United States is the only wealthy, industrialized nation that does not provide universal health care.

The health care industry is considered an industry or profession which includes peoples' exercise of skill or judgment or the providing of a service related to the preservation or improvement of the health of individuals or the treatment or care of individuals who are injured, sick, disabled, or infirm. The delivery of modern health care depends on an expanding group of trained professionals coming together as an interdisciplinary team.[5][6]

Consuming over 10 percent of gross domestic product of most developed nations, health care can form an enormous part of a country's economy. In 2003, health care costs paid to hospitals, physicians, nursing homes, diagnostic laboratories, pharmacies, medical device manufacturers and other components of the health care system, consumed 16.3 percent[7] of the GDP of the United States, the largest of any country in the world. For the United States, the health share of gross domestic product (GDP) is expected to hold steady in 2006 before resuming its historical upward trend, reaching 19.5 percent of GDP by 2016.[8] In 2001, for the OECD countries the average was 8.4 percent[9] with the United States (13.9%), Switzerland (10.9%), and Germany (10.7%) being the top three.