1. United Nations Department of Economic and Social Affairs, 2020. United Nations Department of Economic and Social Affairs, World Population Ageing 2020 Highlights: Living Arrangements Of Older Persons. United Nations Publications (2020) Retrieved April 8, 2021, from United Nations in https://www.un.org/development/desa/pd/sites/www.un.org.development.desa.pd/files/undesa_pd-2020_world_population_ageing_highlights.pdf.
2. S. Rattan, M. Kyriazi, The science of hormesis in health and longevity, (2018).
3. A.s. Association, 2019 Alzheimer's disease facts and figures, Alzheimer's & Dementia, 15 (2019) 321–387.
4. V. Bell, D. Troxel, A Dignified Life: The Best FriendsTM Approach to Alzheimer's Care: A Guide for Care Partners, Health Communications, Inc., 2012.
5. M.E. Pollack, Intelligent assistive technology: the present and the future, in: International Conference on User Modeling, Springer, 2007, pp. 5–6.