Telenursing refers to the use of information technology in the provision of nursing services whenever physical distance exists between patient and nurse, or between any numbers of nurses. As a field, it is part of telemedicine, and has many points of contacts with other medical and non-medical applications, such as tele diagnosis, teleconsultation, and telemonitoring. The field, however, is still being developed as the information on telenursing isn't comprehensive enough. Telenursing is growing in many countries because of the preoccupation in driving down the costs of health care, an increase in the number of aging and chronically ill population, and the increase in coverage of health care to distant, rural, small or sparsely populated regions. Among its many benefits, telenursing may help solve increasing shortages of nurses; to reduce distances and save travel time, and to keep patients out of hospital. A greater degree of job satisfaction has been registered among tele nurses.