Lancaster General Hospital is a hospital in Lancaster, Pennsylvania.

Founded in 1893 in a small home on Queen Street, the hospital now stands in a 590-bed facility located at 555 North Duke Street in Lancaster.

Health care or healthcare is the maintenance or improvement of health via the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in human beings.

Healthcare is delivered by health professionals (providers or practitioners) in allied health professions, chiropractic, physicians, physician associates, dentistry, midwifery, nursing, medicine, optometry, pharmacy, psychology, and other health professions.

It includes the work done in providing primary care, secondary care, and tertiary care, as well as in public health.

Health is the level of functional and metabolic efficiency of a living organism.

In humans it is the ability of individuals or communities to adapt and self-manage when facing physical, mental or social changes.

The World Health Organization (WHO) defined health in its broader sense in its 1948 constitution as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity." This definition has been subject to controversy, in particular as lacking operational value, the ambiguity in developing cohesive health strategies, and because of the problem created by use of the word "complete".

Other definitions have been proposed, among which a recent definition that correlates health and personal satisfaction.

A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process.

Tool use by humans dates back millions of years, and other animals are also known to employ simple tools.

Educational technology is defined by the Association for Educational Communications and Technology as "the study and ethical practice of facilitating learning and improving performance by creating, using, and managing appropriate technological processes and resources".