Factors besides age and genetics influence the prevalence of Alzheimer's disease
Is it true that factors besides age and genetics influence the prevalence of Alzheimer's disease?
Yes. Extensive epidemiological and clinical evidence demonstrates that modifiable environmental, lifestyle, and health factors significantly influence the prevalence and risk of Alzheimer's disease alongside age and genetics.
Verdict: SUPPORTED · 11 sources for, 0 against · Last checked
The retrieved literature universally supports the claim that Alzheimer's disease is a multifactorial disorder influenced by modifiable environmental, lifestyle, and health factors in addition to age and genetics. Multiple reviews, cohort studies, and genetic association papers confirm that a substantial portion of Alzheimer's risk and prevalence is tied to these non-genetic, non-age factors. Therefore, the verdict is SUPPORTED with no contradictory evidence.
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Zhang, X., Tian, Y., Wang, Z., Ma, Y., Tan, L., & Yu, J. (2021). The Epidemiology of Alzheimer's Disease Modifiable Risk Factors and Prevention. doi.org. https://doi.org/10.14283/jpad.2021.15
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Kuo, C., Stachiv, I., & Nikolai, T. (2020). Association of Late Life Depression, (Non-) Modifiable Risk and Protective Factors with Dementia and Alzheimer’s Disease: Literature Review on Current Evidences, Preventive Interventions and Possible Future Trends in Prevention and Treatment of Dementia. doi.org. https://doi.org/10.3390/ijerph17207475
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Luo, J., Thomassen, J., Bellenguez, C., Grenier‐Boley, B., Rojas, I. d., Castillo, A., Parveen, K., Küçükali, F., Nicolas, A., Peters, O., Schneider, A., Dichgans, M., Rujescu, D., Scherbaum, N., Jürgen, D., Riedel-Heller, S. G., Hausner, L., Porcel, L., Düzel, E., Grimmer, T., Wiltfang, J., Heilmann-Heimbach, S., Moebus, S., Tegos, T., Scarmeas, N., Clarimón, J., Moreno, F., Pérez-Tur, J., Bullido, M., Pastor, P., Sánchez-Valle, R., Álvarez, V., Boada, M., García-González, P., Puerta, R., Mir, P., Real, L., Piñol-Ripoll, G., García-Alberca, J. M., Royo, J., Rodríguez-Rodríguez, E., Soininen, H., Kuulasmaa, T., Mendonça, A. d., Mehrabian, S., Hort, J., Vyhnálek, M., Lee, S. v. d., Graff, C., Papenberg, G., Giedraitis, V., Boland, A., Bacq-Daian, D., Deleuze, J., Nicolas, G., Dufouil, C., Pasquier, F., Hanon, O., Debette, S., Grünblatt, E., Popp, J., Benussi, L., Galimberti, D., Arosio, B., Mecocci, P., Solfrizzi, V., Parnetti, L., Squassina, A., Tremolizzo, L., Borroni, B., Nacmias, B., Sorbi, S., Caffarra, P., Seripa, D., Rainero, I., Daniele, A., Masullo, C., Spalletta, G., Williams, J., Amouyel, P., Jessen, F., Kehoe, P., Magda, T., Rossi, G., Sánchez-Juan, P., Sleegers, K., Ingelsson, M., Andreassen, O., Hiltunen, M., Duijn, C. V. v., Sims, R., Flier, W. M. v. d., Ruiz, A., Ramírez, A., Lambert, J., & Frikke-Schmidt, R. (2023). Genetic Associations Between Modifiable Risk Factors and Alzheimer Disease. doi.org. https://doi.org/10.1001/jamanetworkopen.2023.13734
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Mayer, F., Pucchio, A. D., Lacorte, E., Bacigalupo, I., Marzolini, F., Ferrante, G., Minardi, V., Masocco, M., Canevelli, M., Fiandra, T. D., & Vanacore, N. (2018). An Estimate of Attributable Cases of Alzheimer Disease and Vascular Dementia due to Modifiable Risk Factors: The Impact of Primary Prevention in Europe and in Italy. doi.org. https://doi.org/10.1159/000487079
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Ourry, V., Binette, A. P., St-Onge, F., Strikwerda-Brown, C., Chagnot, A., Poirier, J., Breitner, J., Arenaza‐Urquijo, E., Rabin, J. S., Buckley, R., Gonneaud, J., Marchant, N., & Villeneuve, S. (2023). How do modifiable risk factors affect Alzheimer's disease pathology or mitigate its effect on clinical symptom expression?. doi.org. https://doi.org/10.1016/j.biopsych.2023.09.003
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Boyle, R., Koops, E., Ances, B., Andrews, E. J., Arenaza‐Urquijo, E., Benjanin, A., Brickman, A., Buckley, R., Clas, G. S., Costello, E., Coughlan, G., Conley, A. C., Deng, F., Faria, D. d. P., Edwards, N. C., Flores-Aguilar, L., Fortea, J., Saidi, L. G., Head, E., Hom, C., Koenig, K. A., Lao, P. J., Lengyel, I., Li, Y., Loi, S. M., Loughrey, D. G., McGlinchey, E., Newhouse, P. A., Pertierra, L., Prokopiou, P. C., Qi, Q., Resende, E. d. P. F., Russell, J. K., Scanlon, C., Schneider, C., Schultz, S. A., Seto, M., Shaka, S. E., Soldan, A., Alcázar, L. V., Weng, Y., Wilson, J. E., Zaman, S., Zsadanyi, S. E., & Hartley, S. (2025). Resistance and resilience to Alzheimer's disease in Down syndrome. doi.org. https://doi.org/10.1002/alz.70151
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Kaur, P., Khan, H., Grewal, A., Dua, K., Singh, S., Gupta, G., & Singh, T. (2024). Exploring Therapeutic Strategies: The Relationship between Metabolic Disorders and FOXO Signalling in Alzheimer's Disease.. doi.org. https://doi.org/10.2174/0118715273321002240919102841
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Dhillon, A. & Fazal, J. A. (2025). Overview and Regional Context of Alzheimer’s Disease in the Middle East and North Africa Region. doi.org. https://doi.org/10.7759/cureus.83164
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K, R., I, L., A, H., A, F., & JB, S. (2026). The best treatment is prevention: prevention of cognitive decline and dementia - current state, gaps and next steps.. doi.org. https://doi.org/10.1186/s42466-026-00494-4
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YQ, H., MV, V., SE, B., Z, L., J, G., PM, H., A, T., M, B., C, V., SE, S., & JA, W. (2025). Rate of incident dementia and care needs among older adults with new traumatic brain injury: a population-based cohort study.. doi.org. https://doi.org/10.1503/cmaj.250361
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Khaled, M., Al-Jamal, H., Matar, D., Ibrahim, A., Tajer, L., Issa, N., El-Mir, R., & Hantour, J. (2025). Unveiling the link between APOE ε4, environmental factors, and Alzheimer's disease in North Lebanon: A case-control study. doi.org. https://doi.org/10.1177/13872877241307307
What does the evidence say?
The retrieved literature universally supports the claim that Alzheimer's disease is a multifactorial disorder influenced by modifiable environmental, lifestyle, and health factors in addition to age and genetics. Multiple reviews, cohort studies, and genetic association papers confirm that a substantial portion of Alzheimer's risk and prevalence is tied to these non-genetic, non-age factors. Therefore, the verdict is SUPPORTED with no contradictory evidence.
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