Can I Have Memory Loss But Not Dementia? A Patient’s Guide to Healthy Aging vs. Cognitive Decline

June 7, 2022Henry Peck

As we get older, it is normal to be concerned about experiencing changes in memory or developing Alzheimer’s disease-related dementia. Maybe you are concerned about forgetting to pay a bill every once in a while or about forgetting a birthday on occasion. It is important to understand that there are many potential causes of memory loss; it is possible to have memory loss but not dementia.

Below, we provide information on signs of memory loss, potential causes of memory loss that are not dementia, how Alzheimer's disease causes memory loss, and how to distinguish between normal cognitive aging and dementia.

Signs of Memory Loss

Memory loss is one of the most recognizable early signs of dementia. Memory loss that is severe enough to disrupt daily living may be a symptom of Alzheimer’s disease or other causes of dementia. Here are six common signs of memory loss:

  1. Repeatedly asking the same questions
  2. Forgetting common words or mixing up words
  3. Struggling to follow a list of instructions or steps required to complete familiar tasks
  4. Becoming lost in familiar areas or places
  5. Difficulty understanding time or place
  6. Misplacing items in inappropriate places or losing things frequently

Memory Loss But Not Dementia: Other Potential Causes

Dementia is an umbrella term used to describe a decline in cognitive abilities that interfere with an individual’s ability to complete basic day-to-day activities, or Activities of Daily Living. Dementia is not a specific disease but rather describes a group of symptoms—one of which is memory loss. Alzheimer’s disease, on the other hand, is the most common cause of dementia. In other words, Alzheimer’s disease is a specific disease that causes Alzheimer’s-related dementia. Similarly, Parkinson’s disease is a specific disease that causes Parkinson’s disease-related dementia (also called Parkinson’s disease dementia).

Memory loss is not unique to dementia—several medical conditions can cause memory loss and other cognitive changes. Conditions that can cause changes in memory include:

  • Head injury.
  • Some thyroid, liver, and kidney disorders.
  • Anxiety and depression.
  • Functional cognitive disorder (FCD).
  • Vitamin deficiencies.
  • Blood or infections in the brain.

How Alzheimer’s Disease Causes Memory Loss

Loss of memory is among the first symptoms commonly reported by patients with Alzheimer’s disease. The primary underlying cause of memory loss, confusion, and forgetfulness in Alzheimer’s disease patients is the progressive damage caused by Alzheimer’s. This progressive damage is thought to be largely due to Alzheimer’s pathology—namely beta-amyloid plaques and neurofibrillary tangles. The unique patterns or characteristics of impaired memory functions in Alzheimer's disease patients depend on where an Alzheimer’s patient lies on the disease continuum, meaning what stage of the disease the patient is in. 

Memory Loss But Not Dementia: Distinguishing Between Normal Cognitive Aging and Dementia

As we age, changes occur in all parts of the body, including the brain. For normal aging, cognitive abilities, such as memory, are likely to decline very slowly and gradually over time, with only a minor decline in cognitive function. For Alzheimer’s disease-related dementia, this decline in cognitive abilities follows a much steeper curve. A newer school of thought within the field of neurology is that Alzheimer’s disease-related dementia is just accelerated aging of the brain, meaning this decline occurs at an accelerated rate compared to cognitively healthy individuals.

Some changes to memory skills and other cognitive abilities as you age are normal. Minor changes to abilities such as memory, planning, organizing, and decision-making can occur with normal, healthy cognitive aging. For example, you may experience:

  • Taking slightly longer than before to learn new things.
  • Forgetting to pay a bill every once in a while.
  • Minor decreases in your ability to pay attention.
  • Being slower to find the right word to use.
  • Having mild difficulty with multitasking.

For individuals with dementia, cognitive impairments will likely be more severe, enough to interfere with Activities of Daily Living. Changes beyond memory loss that may indicate the presence of Alzheimer’s disease-related dementia may include a decline in cognition in domains such as cognitive processing speed and executive function and a decline in function in domains such as motor function, gait, speech and articulation, and vision and eye movement.

If you have concerns about memory loss or other changes in cognitive abilities, your doctor will likely want to rule out any other potential causes of memory loss and may test you for Alzheimer’s disease

Get to Know Your Brain with Altoida

At Altoida, we are dedicated to providing a reliable, affordable, and highly accurate way to measure and monitor your brain health. Our Precision Neurology platform and app-based medical device transform your smartphone or tablet into the world’s most powerful tool to assess neurocognitive function.

By completing a series of augmented reality and motor activities on a smartphone or tablet, Altoida’s device extracts and provides robust measurements of brain function across 13 unique neurocognitive domains. Our device measures and analyzes nearly 800 multimodal cognitive and functional digital biomarkers backed by 11 years of clinical validation. This data can be tracked longitudinally to reveal trends and patterns while flagging concerning ones.

This method, and our innovative artificial intelligence, will pioneer fully digital predictive neurological disease diagnosis. After our Breakthrough Device designation by the FDA, Altoida’s device will provide patients with a predictive score that will enable a highly accurate prediction of whether a patient aged 55 and older will or will not convert from Mild Cognitive Impairment to Alzheimer’s disease within 12 months. Our diagnostic capabilities enable us to understand and differentiate between changes in brain health due to Alzheimer’s disease and changes due to other factors.

To learn more about conditions that cause memory loss but are not dementia or about using Altoida’s Precision Neurology platform and medical device to monitor your brain health, contact us today.

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