What Is Normal Age-Related Memory Loss?

Some changes in thinking and memory are a normal part of aging; it's generally expected because the brain stores and recalls information at a slower pace. You might find yourself drawing a blank on a friend's name mid-sentence or walking into a room and forgetting why you were going there. Occasional forgetfulness is common with normal aging and not an indication of the onset of dementia or Alzheimer's disease. In these situations, what matters is whether the changes are occasional and manageable or becoming more frequent, worsening, or interfering with everyday activities (National Institute on Aging, 2023). 

This guide takes an in-depth look at how to differentiate between age-related memory loss and something more.

Key Takeaways

• Many memory problems have reversible causes, such as alcohol or drug misuse, certain medications, depression, thyroid problems, low vitamin B12, and poor sleep.
• If memory issues disrupt daily life, like getting lost in a familiar place or repeatedly asking the same questions, it warrants an evaluation.
• Mild cognitive impairment (MCI) involves more noticeable problems with memory or thinking than expected for a person's age, but not everyone who has MCI develops dementia.
• Occasional forgetfulness is a normal part of aging.
• Some men with low testosterone report difficulties with concentration or mental clarity, but current evidence doesn’t show that testosterone therapy reliably improves memory or cognitive function.
• A healthcare provider should assess ongoing or worsening memory changes and check for underlying medical conditions.

How Memory Normally Changes With Age

In older adults, the brain continues to function in much the same way it always has, although at a slightly slower pace. Processing information and recalling certain words or names may take a little longer, and some people may notice mild changes in attention or multitasking (Dexter and Ossmy, 2023). The National Institute on Aging (2024) considers this normal aging, not a disease.

Normal age-related memory loss includes sporadic lapses that don't significantly affect daily life. It may look like misplacing your keys or forgetting a cell phone number, but you can still manage your money, routines, and work without help. The important distinction is whether forgetfulness remains occasional and manageable or becomes persistent, progressively worse, or disruptive to daily life. 

Normal Memory Changes vs Warning Signs

[Photo by Getty Images, Canva].

One way to understand whether a memory change may be part of normal aging is to look at how often it happens and whether it interferes with daily life. 

The Alzheimer's Association (2024) says that forgetting an appointment and remembering it later on is a common age-related change; however, memory problems that interfere with everyday activities may be a sign of a more significant cognitive problem and should be discussed with a healthcare provider.

Changes Typically Part of Aging:

• Occasionally forgetting where you put your keys or phone, or other belongings
• Taking longer to learn something new
• Periodically needing a reminder about an appointment from family members
• Sometimes forgetting which word to use or having trouble recalling a name 

Changes to Discuss with a Healthcare Provider:

• Getting lost in a place you're familiar with or losing track of the date or time of year
• Forgetting new information/recent events or trouble remembering important dates
• Repeatedly asking the same question or relying on reminders or family for things you used to manage alone
• A shift in judgment, behavior, or personality that people around you notice
• Struggling to complete everyday tasks, such as following a recipe or paying the bills

Normal Aging, Mild Cognitive Impairment, and Dementia Explained

Not every change in memory means dementia. Understanding the difference between normal age-related forgetfulness, mild cognitive impairment (MCI), and dementia can help you recognize when a change is worth discussing with a healthcare provider. 

• Normal Aging: Occasional memory or thinking slips, but you can live independently and manage daily life.
• Mild Cognitive Impairment (MCI): Noticeable changes in thinking or memory that are greater than expected for your age, but don't stop you from living on your own. Notably, MCI isn't a definitive path to dementia. The American Academy of Neurology practice guidelines state that some people stay stable in this stage, some return to normal, and some progress to dementia (Petersen et al., 2018).
• Dementia: Changes in memory, thinking, or other cognitive abilities that interfere with a person's ability to manage everyday familiar tasks, such as following a conversation and managing medications.

Treatable Causes of Memory Problems

Memory problems can have causes other than normal aging or dementia; they stem from other underlying conditions that are often treatable and improve once you address the cause (National Institute on Aging, 2024). According to 2025 clinical practice guidelines for mild neurocognitive disorder, several potentially treatable conditions are: 

• Thyroid Problems. An underactive thyroid can affect thinking and concentration and often causes other symptoms, such as mental fog.
• Certain Medications. Certain anti-anxiety drugs, sleeping pills, and some of the older allergy medications can hamper focus and memory.
• Low Vitamin B12. A B12 deficiency can cause neurological and cognitive problems, which may include difficulty with memory and thinking.
• Poor Sleep. Disrupted sleep and untreated sleep apnea can affect attention, learning, and memory.
• Depression and Anxiety. Depression and anxiety can affect attention, concentration, and memory, sometimes making it harder to take in and recall new information.
• Heavy Alcohol Use. Heavy or chronic alcohol use can interfere with how new memories are stored.

(Subramanyam et al., 2025) 

Does Low Testosterone Affect Memory?

Low testosterone may also play a role in the memory-loss puzzle. Some men with low testosterone report difficulty concentrating and other cognitive symptoms. However, it's important to note that treating low testosterone hasn't been proven to improve memory.

Research on whether testosterone replacement therapy improves cognitive function has produced mixed results. A 2025 systematic review and meta-analysis of 14 studies found statistically significant improvements in overall cognition, memory, and executive function among men with hypogonadism who received androgen replacement therapy, although the effects were modest and the studies varied in their methods and cognitive measures. Other studies have found no meaningful cognitive benefit from testosterone therapy (Wang et al., 2025). 

Testosterone therapy can address the symptoms of low testosterone with a healthcare provider's supervision; however, it isn't a memory treatment.

If your mental sharpness has dipped and you have low libido or low energy, it makes sense to check your testosterone levels with an at-home testosterone test and review the results with a healthcare provider. Testosterone testing can help determine whether low testosterone may be one factor worth evaluating alongside other potential causes of cognitive symptoms. 

To find out more about the effects of low testosterone, read our guide: Understanding Low Testosterone Symptoms

Long-Acting Testosterone Support

Testosterone Cypionate

Supports energy, focus, sexual health, and overall wellbeing

Shop Now

When to See a Provider About Memory Changes

Consider speaking to a medical provider if you notice your memory's getting worse or beginning to interfere with your usual activities, especially if family or friends around you begin to notice changes. Being evaluated is worthwhile because it can help identify potentially treatable causes of cognitive changes and determine whether further monitoring or testing is appropriate.

It's also important to let your provider know the specifics: when the changes began, what it is that you're forgetting, and if anything else has changed, such as your mood, sleep, medications, or other symptoms. These details will help determine if bloodwork, a cognitive test, or a referral makes more sense.

Note: Seek prompt medical attention if there's a rapid decline over hours or days, sudden confusion, or memory problems following a head injury.

FAQs

At What Age Does Age-Related Memory Loss Start?

Some aspects of cognitive processing and memory can change gradually with age, although timing and extent of these changes can vary from person to person. This incremental slowing is normal and isn't a sign of dementia on its own (National Institute on Aging, 2024).

How Do I Know If My Memory Loss Is Serious?

One important warning sign is when memory or thinking problems begin to interfere with everyday life. If you're getting lost more often, repeating yourself, or relying more on family, it's time to see a provider (Alzheimer's Association, 2024).

Can Age-Related Memory Loss Be Reversed?

If cognitive symptoms are related to a potentially treatable condition, such as thyroid issues, low vitamin B12, medications, poor sleep, depression, or heavy alcohol use, it often improves once the issue is resolved (National Institute on Aging, 2024). However, dementia can't be reversed, but many of the long-term risks are associated with factors you can influence; for example, staying socially and physically active, managing your heart health, treating vision and hearing issues, and protecting your mental health may all help protect your brain as you age (Livingston et al., 2024).

References

• Alzheimer's Association. (2024). 10 early signs and symptoms of Alzheimer's and dementia.
• Dexter, M., & Ossmy, O. (2023). The effects of typical aging on cognitive control: Recent advances and future directions. Frontiers in Aging Neuroscience, 15, Article 1231410.
• Livingston, G., Huntley, J., Liu, K. Y., Costafreda, S. G., Selbæk, G., Alladi, S., Ames, D., Banerjee, S., Burns, A., Brayne, C., Fox, N. C., Ferri, C. P., Gitlin, L. N., Howard, R., Kales, H. C., Kivimäki, M., Larson, E. B., Nakasujja, N., ... Mukadam, N. (2024). Dementia prevention, intervention, and care: 2024 report of the Lancet Standing Commission. The Lancet, 404(10452), 572–628.
• National Institute on Aging. (2023). Memory problems, forgetfulness, and aging. U.S. Department of Health and Human Services, National Institutes of Health.
• Petersen, R. C., Lopez, O., Armstrong, M. J., Getchius, T. S. D., Ganguli, M., Gloss, D., Gronseth, G. S., Marson, D., Pringsheim, T., Day, G. S., Sager, M., Stevens, J., & Rae-Grant, A. (2018). Practice guideline update summary: Mild cognitive impairment. Neurology, 90(3), 126–135.
• Subramanyam, A. A., Singh, S., & Raut, N. B. (2025). Clinical practice guidelines for assessment and management of mild neurocognitive disorder. Indian Journal of Psychiatry, 67(1), 21–40.
• Wang, B., Liu, X., Chen, W., & Liu, L. (2025). Effects of androgen replacement therapy on cognitive function in patients with hypogonadism: A systematic review and meta-analysis. Biomedical Reports, 22(1), Article 105.