Gerontology is the multidisciplinary scientific study of aging, encompassing physical, mental, and social changes in older adults. It looks at how populations age and the impact of aging on society as a whole. Geriatric nursing, conversely, focuses specifically on the hands-on clinical care, disease management, and health promotion for older persons. While a gerontologist might study retirement patterns or cellular decline across populations, a geriatric nurse assesses pressure ulcer risks, manages polypharmacy, and assists with activities of daily living in a clinical setting.
Global populations are aging rapidly due to declining fertility rates and increased life expectancy. In Nigeria, while the population remains relatively youthful, the absolute number of older adults is growing steadily. This demographic shift increases the burden on healthcare infrastructure, social security systems, and family caregiving structures. Nurses in Nigeria must prepare for an epidemiological transition where chronic non-communicable diseases replace infectious diseases as the primary health threat among older persons.
Theories of aging explain why and how people change as they grow older. Biological theories focus on cellular wear and tear, genetic programming, and oxidative stress. Psychological theories, such as Erikson's developmental stages, examine how older adults maintain ego integrity versus despair. Sociological theories, including disengagement and activity theories, explore how older individuals interact with society and how social roles shift during retirement.
Mental well-being in older adults depends heavily on social connectedness, coping mechanisms, and life stability. Common psychosocial challenges include retirement adjustment, bereavement, and social isolation. Nurses must recognize that conditions like depression and delirium are not normal parts of aging. Depression is frequently underdiagnosed in older adults because symptoms can mimic somatic illness or cognitive decline, requiring careful nursing assessment.
Caring for older adults frequently involves complex ethical dilemmas. Autonomy allows competent patients to make their own healthcare choices, even if family members disagree. Nurses must respect informed consent and uphold confidentiality. In situations involving cognitive impairment, surrogate decision-makers may be needed. Nurses must remain vigilant in detecting elder abuse, whether physical, financial, or emotional, which is a significant legal and public health concern.