Health care is the maintenance or improvement of health via the preventiondiagnosis, and treatment of diseaseillnessinjury, and other physical and mental impairments in human beings. Healthcare is delivered by health professionals providers or practitioners.

Access to health care may vary across communities, and individuals, largely influenced by social and economic conditions as well as the health policies in place.

The act of taking preventative or necessary medical procedures to improve a person’s well-being. This may be done with surgery, the administering of medicine, or other alterations in a person’s lifestyle. These services are typically offered through a health care system made up of hospitals and physicians.