Gerontological nursing is the specialty of nursing pertaining to older adults. Gerontological nurses work in collaboration with older adults, their families, and communities to support healthy aging, maximum functioning, and quality of life. The term gerontological nursing, which replaced the term geriatric nursing in the 1970s, is seen as being more consistent with the specialty's broader focus on health and wellness, in addition to illness. Gerontological nursing is the specialty of nursing pertaining to older adults. Gerontological nurses work in collaboration with older adults, their families, and communities to support healthy aging, maximum functioning, and quality of life. The term gerontological nursing, which replaced the term geriatric nursing in the 1970s, is seen as being more consistent with the specialty's broader focus on health and wellness, in addition to illness. Gerontological nursing is important to meet the health needs of an aging population. Due to longer life expectancy and declining fertility rates, the proportion of the population that is considered old is increasing. Between 2000 and 2050, the number of people in the world who are over age 60 is predicted increase from 605 million to 2 billion. The proportion of older adults is already high and continuing to increase in more developed countries. In 2010, seniors (aged 65 and older) made up 13% and 23% of the populations of the US and Japan, respectively. By 2050, these proportions will increase to 21% and 36%. Geriatric nurses are expected to be skilled in patient care, treatment planning, education, mental health, and rehabilitation. They also take on many roles in the workplace. The main responsibility is as a caregiver. They can also be advocates, counselors, and educators for their patients. Gerontological nursing draws on knowledge about complex factors that affect the health of older adults. Older adults are more likely than younger adults to have one or more chronic health conditions, such as diabetes, cardiovascular disease, cancer, arthritis, hearing impairment, or a form of dementia such as Alzheimer's disease. As well, drug metabolism changes with aging, adding to the complexity of health needs. Gerontological nurses work in a variety of settings, including acute care hospitals, rehabilitation, nursing homes (also known as long term care homes and skilled nursing facilities), assisted living facilities, retirement homes, community health agencies, and the patient's home.The conditions of the geriatric patient's health determines what type of facility one should reside in. Assisted living facilities are also known as senior retirement homes, and they provide care services depending on health conditions. Skilled nursing, otherwise known as a nursing home, is a place where they can reside and get provided with 24/7 cares. Older adults have been referred to as 'the core business of healthcare' by gerontological nursing experts. Population aging and the complexity of health care needs of some older adults means that older adults are more likely than younger people to use health care services. In many settings, the majority of patients are older adults. Thus, experts recommend that all nurses, not only those identified as gerontological nurses, need specialized knowledge about older adults. This position was endorsed by 55 US nursing specialty organizations. Including, GAPNA (formerly NCGNP) which was founded in 1981, by a group of Gerontological Nurse Practitioners with the intention of offering the first continuing education conferences designed specifically to meet the needs of advanced practice nurses providing care for older adults. Currently, GAPNA represents the interests of all advanced practice nurses who work with older adults. These advance practice nurses are active in a variety of settings across the continuum including primary, acute, post-acute and long-term care. GAPNA an organization for advanced practice nurses seeking continuing education in gerontological care as well as networking and peer support from experienced clinicians. The last few decades have brought in more interest in older people as their numbers in society grow. More people than ever before are surviving to their senior years which substantially makes the demand for more working nurses in gerontology. Viewing aging as a natural process also develops more positive attitudes towards working with older adults. The terms Gerontology and Geriatrics are often used interchangeably, but there are differences between the two. Gerontology is the study of the social, cultural, psychological, cognitive, and biological aspects of ageing. Geriatrics, or geriatric medicine, is a specialty that focuses on health care of elderly people. Gerontological Nurses need to know how to care for illnesses that affect the aging, the other factors affect aging, and how these impact people.