Our Services
Medical Information
Helpful Resources
Published on: 9/29/2026
Dementia signs include memory loss that disrupts daily life, difficulty finding words, poor judgment, getting lost in familiar places, and changes in mood or personality, while normal ageing looks more like occasionally forgetting a name and recalling it later, misplacing keys but retracing your steps, or needing a little more time to learn something new. The key difference is progression and interference: age-related changes stay stable and manageable, whereas dementia worsens over time and begins to affect work, finances, driving, and relationships. Several other conditions, including depression, thyroid problems, vitamin B12 deficiency, medication side effects, and sleep disorders, can mimic dementia and are often treatable, so there are important details and red flags to weigh before assuming the worst, all explained below.
Because early evaluation can slow decline, unlock treatment for reversible causes, and give families time to plan, it helps to organize what you or your loved one is experiencing before a doctor's visit. Take a free, instant, online symptom check to see which conditions may explain the changes you are noticing and what steps to take next.
Last reviewed for medical accuracy: 09/29/2026
Dementia is not a normal part of ageing. While many people experience occasional memory lapses as they grow older, dementia involves a decline in cognitive abilities that interferes with everyday life. Recognizing the early signs of dementia—and distinguishing them from typical age-related changes—can lead to earlier diagnosis, better treatment planning and improved quality of life.
As we get older, our brains change in predictable ways. According to organizations such as the World Health Organization and the Alzheimer’s Association, common age-related changes include:
These changes rarely interfere with daily independence, workplace performance or social engagement.
Dementia is an umbrella term for progressive brain disorders that affect memory, thinking, behavior and the ability to perform everyday activities. Alzheimer’s disease is the most common form, accounting for 60–80% of cases. Other types include vascular dementia, Lewy body dementia and frontotemporal dementia.
Key points about dementia:
Early detection of dementia can help individuals access treatment options, support services and lifestyle changes that may slow progression. The following signs, endorsed by authorities like the U.S. National Institute on Aging, often indicate dementia rather than normal ageing:
To decide whether changes may signal dementia rather than routine ageing, consider these contrasts:
| Normal Ageing | Possible Dementia |
|---|---|
| Occasionally forgetting names or dates | Frequently forgetting close family members or events |
| Remembering later with prompts | Rarely recalling information even with help |
| Slower to learn new technology | Unable to follow simple instructions |
| Misplacing items but retracing steps easily | Losing items and unable to retrace steps |
| Keeping social engagements | Withdrawing from friends, family and activities |
If you or a loved one notice changes consistent with the signs of dementia, it’s wise to address them early. You might consider a free, online symptom check, using the doctor approved Ubie Symptom Checker to gauge your concerns and learn more about potential next steps.
Always speak to a doctor about anything that could be life-threatening or serious. Only a medical professional can provide a formal diagnosis and discuss appropriate treatment options.
Distinguishing between normal ageing and dementia hinges on the impact of symptoms on daily life. Occasional forgetfulness, slower thinking and mild word-finding pauses are common with age. But memory loss that disrupts activities, confusion about time or place, and significant changes in judgment or personality warrant further evaluation.
Early awareness, prompt medical advice and support resources can improve outcomes. If you suspect dementia, start with a free, online symptom check, using the doctor approved Ubie Symptom Checker and arrange to speak to a doctor about any concerns. Taking action today can make a meaningful difference for you or your loved one.
(References)
* Driscoll I, Espeland MA, Wassertheil-Smoller S, Gaussoin SA, Ding J, Granek IA, Ockene JK, Phillips LS, Yaffe K, Resnick SM, Women's Health Initiative Study of Cognitive Aging. Weight change and cognitive function: findings from the Women's Health Initiative Study of Cognitive Aging. Obesity (Silver Spring). 2011 Aug;19(8):1595-600. doi: 10.1038/oby.2011.23. Epub 2011 Mar 10. PMID: 21394095; PMCID: PMC3175491.
* Goveas JS, Espeland MA, Hogan PE, Tindle HA, Shih RA, Kotchen JM, Robinson JG, Barnes DE, Resnick SM. Depressive Symptoms and Longitudinal Changes in Cognition: Women's Health Initiative Study of Cognitive Aging. J Geriatr Psychiatry Neurol. 2014 Jun;27(2):94-102. doi: 10.1177/0891988714522697. Epub 2014 Feb 28. PMID: 24584465; PMCID: PMC4433445.
* Zakharov VV, Gromova DO. [Current approaches to management of patients with mild cognitive impairment]. Zh Nevrol Psikhiatr Im S S Korsakova. 2017;117(3):107-112. doi: 10.17116/jnevro201711731107-112. PMID: 28399106.
* Meles SK, Pagani M, Arnaldi D, De Carli F, Dessi B, Morbelli S, Sambuceti G, Jonsson C, Leenders KL, Nobili F. The Alzheimer's disease metabolic brain pattern in mild cognitive impairment. J Cereb Blood Flow Metab. 2017 Dec;37(12):3643-3648. doi: 10.1177/0271678X17732508. Epub 2017 Sep 20. PMID: 28929833; PMCID: PMC5718332.
* Panza F, Lozupone M, Solfrizzi V, Sardone R, Dibello V, Di Lena L, D'Urso F, Stallone R, Petruzzi M, Giannelli G, Quaranta N, Bellomo A, Greco A, Daniele A, Seripa D, Logroscino G. Different Cognitive Frailty Models and Health- and Cognitive-related Outcomes in Older Age: From Epidemiology to Prevention. J Alzheimers Dis. 2018;62(3):993-1012. doi: 10.3233/JAD-170963. PMID: 29562543; PMCID: PMC5870024.
* Talamonti D, Koscik R, Johnson S, Bruno D. Temporal contiguity and ageing: The role of memory organization in cognitive decline. J Neuropsychol. 2021 Apr;15 Suppl 1:53-65. doi: 10.1111/jnp.12219. Epub 2020 Jul 11. PMID: 32652802; PMCID: PMC7958486.
* Kocagoncu E, Nesbitt D, Emery T, Hughes LE, Henson RN, Rowe JB, Cambridge Center for Ageing and Neuroscience. Neurophysiological and Brain Structural Markers of Cognitive Frailty Differ from Alzheimer's Disease. J Neurosci. 2022 Feb 16;42(7):1362-1373. doi: 10.1523/JNEUROSCI.0697-21.2021. Epub 2022 Jan 10. PMID: 35012965; PMCID: PMC8883844.
* Palmer JM, Huentelman M, Ryan L. More than just risk for Alzheimer's disease: APOE ε4's impact on the aging brain. Trends Neurosci. 2023 Sep;46(9):750-763. doi: 10.1016/j.tins.2023.06.003. Epub 2023 Jul 16. PMID: 37460334.
* Eyjolfsdottir H, Gudmundsson TE, Teitsdottir UD, Petersen PH, Johnsen K, Johannsson M, Olafsdottir OB, Hardarson SH, Stefansson E, Sturludottir M, Ivarsson IO, Jonsdottir MK, Snaedal J. [Mild cognitive impairment - dementia precursor or normal aging?]. Laeknabladid. 2025 Jun;111(6):262-268. doi: 10.17992/lbl.2025.06.844. PMID: 40434232.
* Gong J, Zaninotto P. Integrating Exposome into Lifecourse Understanding of Cognitive Ageing and Dementia: Current Evidence, Methodological Challenges, and Future Directions. Int J Environ Res Public Health. 2025 May 22;22(6). doi: 10.3390/ijerph22060815. Epub 2025 May 22. PMID: 40566243; PMCID: PMC12193384.
We would love to help them too.
For First Time Users
We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.
Was this page helpful?
Purpose and positioning of servicesUbie Doctor's Note is a service for informational purposes. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.