Written by Deepika
Has your pursuit of pathology created a kind of professional familiarity?
Perhaps the most precious thing that healthcare professionals must preserve is their awe of the sophistication of the human body. When studied closely, it is truly mind-blowing how extraordinary the most normal function is.
Peripheral neuropathy offers a rare glimpse behind the veil. A single pain signal transferring between the brain and the spinal cord through various nerves can remind us of the wonders of biological engineering.
Patients with this disorder may feel unusual sensations, like burning without heat or pain from the touch of a bedsheet. Every feeling of warmth, pressure, texture, etc., is not something the human body possesses, but one that is meticulously constructed. The dialogue is so silent that most people are completely unaware of the complexity that allows us to distinguish a handshake from a thorn.
Peripheral neuropathy affects an estimated 1% of adults worldwide, and the risks tend to increase with age. This article will explore four ways in which this connection takes place and why understanding it is important for better patient care.
Changes in Nerve Function
This is perhaps the most obvious way in which aging and peripheral neuropathy are directly proportional. The nervous system has the power to remain remarkably resilient throughout an individual’s life. However, aging is one phenomenon to which it must succumb.
With time, nerves become less efficient in transmitting signals. Plus, the body’s ability to repair damaged nerve tissue declines.
As shared by the National Institute of Neurological Disorders and Stroke, most neuropathies are considered length-dependent. This means their symptoms typically develop first in the nerve endings farthest from the brain and spinal cord. The nerves serving the feet and lower legs are among the longest in the body.
Consequently, feet and legs are frequently the first areas where nerve dysfunction is detected. As Neuropathy Relief Centres notes, symptoms may range from mild discomfort to severe pain that impacts everyday activities.
So, when someone complains of tingling or numbness in their lower extremities, especially older adults, they must not be dismissed. Further evaluation and timely treatment for neuropathy in legs and feet may preserve function, mobility, and quality of life.
The Appropriate Healthcare Response
- Older adults should be checked for sensory symptoms.
- Each routine test should involve questions regarding changes in balance, mobility, and foot sensation.
- Regular neurological and foot assessments are essential.
- Patients must be educated about symptoms that cannot be treated as a normal part of aging.
A Higher Prevalence of Chronic Diseases
Aging itself is considered to be the biggest risk factor for almost every chronic disease out there, be it diabetes or cardiovascular problems. Albert Higgins-Chen, the assistant professor of psychiatry at the Yale School of Medicine, said something that supports this idea.
He remarked that “If you cured cancer tomorrow, the average life expectancy would probably go up only by a couple of years.” That’s because the patient may end up battling some other chronic disease due to aging.
Even peripheral neuropathy risk increases with age, since the body becomes more vulnerable to nerve damage under the stress of chronic diseases. Some conditions damage the nerves themselves, whereas others affect the blood vessels that supply rich oxygen and nutrients. Here are a few chronic conditions particularly associated with peripheral neuropathy:
- Diabetes, where consistently high blood glucose levels can damage both nerves and the small blood vessels that support them
- Chronic kidney disease, where poor kidney function allows waste products to accumulate in the bloodstream and contribute to sensory disturbances
- Peripheral vascular disease, where poor circulation prevents a healthy supply of oxygen and nutrients to the peripheral nerves
- Autoimmune disorders, where conditions like rheumatoid arthritis and lupus contribute to inflammatory processes that affect the nervous system
Healthcare professionals need to consider this connection in light of rising life expectancy. Many patients now live with conditions that once threatened to cut their lives short. Indeed, this is something positive, but it also means that nerves may be exposed to years (or even decades) of metabolic stress, inflammation, and medication effects.
The Appropriate Healthcare Response
- Patients at a higher risk should be screened regularly.
- It is crucial to monitor the progression of chronic diseases closely.
- Patients must receive proper and thorough education on early symptoms.
- Multidisciplinary care is a must, especially for patients with multiple chronic conditions.
A Longer History of Medical Treatments and Medication
Certain medical treatments and medications act as a double-edged sword. While they can play a key role in managing diseases, their flip side is the increased risk of damage to nerve health over time.
Now, this relationship is also closely tied to aging itself. With time, people are likely to develop chronic conditions, multiple in some cases, for which they opt for medication and other treatments.
Each intervention may be necessary on its own, but the cumulative exposure contributes to adverse effects and complications. Here are the common treatment-related aging factors that increase the risk of peripheral neuropathy:
- Certain chemotherapy agents may lead to chemotherapy-induced peripheral neuropathy (CIPN)
- Polypharmacy or multiple medications taken concurrently
- Long-term medication use in vulnerable populations
A younger adult may not have the same level of interaction with the healthcare system as an older adult. After all, a 2025 systematic review confirmed that almost half of older adults had two or more chronic conditions for which they were undergoing treatments.
This review involved over 700,000 older adults worldwide, and the prevalence of multimorbidity was 46%. Now, treatments in all these cases are likely to get complex with time, only to create more room for complications.
The Appropriate Healthcare Response
- Medication lists need to be reviewed regularly.
- Patients receiving therapies known to affect nerve function need to be monitored closely.
- Medication interactions in patients with polypharmacy should be evaluated.
- Collaboration with other specialists is a must when treatment-related neuropathy is suspected.
Greater Vulnerability to Nutritional Deficiencies
Another way aging increases the risk of peripheral neuropathy is by making older adults more susceptible to nutritional deficiencies. Nutrition is often automatically linked with general health and energy levels.
However, its role in nerve function cannot be denied. Peripheral nerves rely on a steady supply of vitamins and minerals to support repair processes and overall neurological health. In case of a deficiency, nerve function may gradually decline, thereby increasing the chances of numbness, weakness, and altered sensation.
With age, several factors can make it more difficult to absorb and utilize essential vitamins and minerals. These include changes in appetite, dietary restrictions, and even digestive issues.
As per recent research involving 231 healthy older adults, it was discovered that lower vitamin B12 levels were linked to slower neurological processing. Now, what’s interesting is that the study also found that nervous system threats prevailed even for those whose B12 levels fell within the normal range. This means the line is quite thin when it comes to the effects of nutritional deficiencies on neurological health.
The following nutrient deficiencies have often been found in association with peripheral neuropathy:
- Vitamin B12, which is essential for maintaining healthy nerve tissue
- Folate, which may impair cellular and nerve function
- Vitamin B6 imbalances, whether it be deficiency or excess intake
- Vitamin E deficiency, as this vitamin protects nerve tissue from oxidative damage
- Copper deficiency, which may lead to sensory changes
The Appropriate Healthcare Response
- The nutritional status of each patient should be checked regularly.
- Those at a higher risk of nutritional deficiencies require close monitoring.
- Dietary patterns and barriers to nutrition should also be considered.
- Patient history must be assessed for any medications that interfere with nutrient absorption.
FAQs
What makes peripheral neuropathy more common among aging populations?
With age, nerves begin to lose their efficiency at transmitting signals to and from the brain. The body’s ability to repair nerve tissue is also affected. Furthermore, chronic diseases, multiple medications, and nutritional deficiencies only tend to accelerate the process, both of aging and nerve damage or peripheral neuropathy.
What are some early signs of peripheral neuropathy in older adults?
The earliest symptoms of peripheral neuropathy are usually length-dependent. This means they tend to occur in areas farthest from the brain. So, feet and legs are the first to show the signs. These may include tingling, numbness, balance difficulties, and unexplained weakness.
Can lifestyle and healthcare interventions reduce the risk of peripheral neuropathy with age?
While aging itself cannot be prevented, many risk factors associated with peripheral neuropathy can be addressed. Regular medication reviews, nutritional assessments, and effective management of chronic diseases can help protect nerve health. With early identification of symptoms, healthcare professionals can intervene before nerve damage progresses.
Recent Data on Peripheral Neuropathy
| Adults worldwide experiencing peripheral neuropathy | 1% |
| 2025 systematic review on adults worldwide with two or more chronic conditions undergoing treatments | Almost half of the 700,000+ older adults, with 46% multimorbidity |
| Recent research involving 231 healthy older adults on the link between Vitamin B12 deficiency and neurological processing | Lower B12 levels linked to slower neurological processing |
| National Institute of Neurological Disorders and Stroke on neuropathies | Considered to be length-dependent |
| 2025 discovery in the field of peripheral nerve regeneration | Signaling molecule CCL3 may help in peripheral nerve regeneration following injury |
If healthcare can recognize the aging factors of peripheral neuropathy early, steps can be taken to improve patient outcomes. At the same time, emerging research has offered a glimmer of hope. In 2025, researchers identified a signaling molecule called CCL3. It appears to play a critical role in peripheral nerve regeneration following injuries.
If anything, this discovery is enabling scientists to understand the mechanisms damaged nerves use to repair themselves. Perhaps new therapies are on the horizon that may enhance nerve recovery?
Thankfully, now is the era of restorative healthcare approaches, something that stands true even for peripheral neuropathy. However, they need to be combined with early detection and patient education to reduce the impact on aging populations.
References
- Mauermann L. Michelle, Staff P. Nathan, et al. 2025. Peripheral Neuropathy A Review. JAMA Network. Volume 335, 3.
https://jamanetwork.com/journals/jama/article-abstract/2841552
- Peripheral Neuropathy. 2026. National Institute of Neurological Disorders and Stroke.
https://www.ninds.nih.gov/health-information/disorders/peripheral-neuropathy
- Backman Isabella. 2024. The biology of aging. Yale Medicine Magazine.
https://medicine.yale.edu/news-article/the-biology-of-aging/
- Zhu Xianshang, Wang Zengrui, et al. 2025. About half of older adults have two or more chronic conditions at the same time: a systematic review and meta-analysis. PubMed Central.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12738304/
- Richard-Beaudry Alexandra, et al. 2025. Vitamin B12 levels association with functional and structural biomarkers of central nervous system injury in older adults. PubMed.
https://pubmed.ncbi.nlm.nih.gov/39927551/
- Emmenis Van Lucie, Caballero-Modol Guillem, et al. 2025. Identification of CCL3 as a Schwann cell chemotactic factor essential for nerve regeneration. ScienceDirect. Volume 44.
https://www.sciencedirect.com/science/article/pii/S2211124725000932
Author Bio
Deepika has over six years of experience as a writer and editor. Passionate about words and learning, she takes an interest in a variety of niches. Her knack for turning complex ideas into relatable narratives allows her to resonate with the reader.
When her pen falls silent, you can find her engrossed in a novel or getting her hands messy with fine arts. By these, Deepika is committed to keeping her curiosity and creativity alive.
Please also review AIHCP’s Life Coach Certification program and Life Coach Courses see if it meets your academic and professional goals. These programs are online and independent study and open to qualified professionals seeking a four year certification
