Cognitive decline, often associated with aging, encompasses a range of conditions from mild cognitive impairment to more severe forms such as dementia and Alzheimer's disease. Research has shown that cognitive decline can result from various factors, including genetics, lifestyle choices, medical conditions, and environmental influences.

One significant study in this field is the Alzheimer's Association's "2019 Alzheimer's Disease Facts and Figures" report, which provides comprehensive insights into the prevalence, impact, and costs associated with Alzheimer's disease and related dementias.

Furthermore, resources such as the National Institute on Aging (NIA) and the World Health Organization (WHO) offer extensive information on cognitive health, including risk factors, prevention strategies, and support for individuals and families affected by cognitive decline.

Numerous studies have highlighted the emotional, social, and financial challenges associated with cognitive decline. Research published in journals such as "Alzheimer's & Dementia" and "Journal of Alzheimer's Disease" delve into the psychological and social implications of dementia on patients and caregivers, shedding light on the need for comprehensive support services and interventions.