Nursing is a healthcare line of work focused on the care of persons, family, and community so they may reach, maintain, or get better optimal health and value of life from conception to death.

Nurses working in a variety of specialties in which they work independently and as part of a team to assess, plan, implement and evaluate care. Nursing Science is a field of knowledge, based on the contributions of nursing science through peer-reviewed journals and evidence-based practice.

Nurses in practice a wide range of settings, from hospitals to visiting people at home and care for them in schools to research in pharmaceutical companies. Nurses working in health centers, independent clinics and doctors' offices, long term care, clinics, nurses, facilities and camps. They also work on cruise ships and in military service. Nurses act as advisers and consultants in the healthcare industry and insurance. Many nurses also work in health advocacy and patient advocacy fields from companies such as Advocate Health, Inc. to assist in a variety of clinical and administrative problems. Some are attorneys and others work with attorneys as legal nurse consultants, reviewing patient records to ensure that proper care and testified in court. Nurses can work on a temporary basis, meaning that changes without making contact in a variety of settings, also known as per diem nursing, agency nursing or travel nursing. Nurses working as researchers in laboratories, universities and research institutes.

Health care is the diagnosis, treatment and prevention of disease, illness, injuries and other physical and mental problems in humans. The care provided by medical professionals, breast enlargement , chiropractic, dentistry, nursing, pharmacy, allied health and other care providers. Exact configuration of health care vary from country to country, but in all cases requires a robust funding mechanism, educated workers, high-paying, reliable information on which to base decisions and policies, and in good condition and logistic facilities to quality medicines and technologies