Short answer
What is brain longevity?
Brain longevity refers to preserving brain health and function as we age, including the ability to remember, learn, concentrate and make decisions. It also encompasses emotional wellbeing and the brain functions that support movement and everyday independence.
Brain health goes beyond memory
Brain health is often associated primarily with memory and cognition. But the brain does much more than think.
It allows us to walk, maintain posture and balance, coordinate complex movements, integrate sensory information, react to unexpected events, regulate emotions, maintain alertness and organise many of the automatic processes required for everyday life, among many other things.
For this reason, ZEM understands brain health as the preservation of the brain’s capacity to support several interconnected functions:
- Memory, attention, language and executive function;
- Processing speed and learning;
- Movement, gait and mobility;
- Balance and postural control;
- Motor coordination and reaction time;
- Sensory integration;
- Emotional regulation and stress response;
- Sleep and wakefulness;
- Autonomic regulation;
- The capacity to adapt to complex everyday situations.
These systems do not function independently. Walking while talking, adapting our movement to an unexpected obstacle, navigating an unfamiliar environment or maintaining balance while processing information all require the simultaneous participation of cognitive, sensory and motor networks.
“Brain health is much broader than memory. A healthy brain allows us to think, but also to walk, maintain balance, coordinate movement, react to the environment, regulate emotions and remain independent. That broader functional perspective is fundamental to the way we approach brain longevity at ZEM.”
– Dr Francisco Mira, Neurologist and Director of Brain Health at ZEM
What are the signs of an ageing brain?
Normal brain ageing can involve slower processing of information, taking longer to learn something new and occasional difficulty recalling a name or finding the right word. For example, you might need more time to understand an unfamiliar app or briefly misplace your glasses before retracing your steps. These changes are generally mild and do not substantially interfere with everyday independence. Their significance depends on how often they occur, whether they are becoming more noticeable and how they affect your usual activities.
Changes that persist, worsen or disrupt familiar tasks deserve a medical assessment. Examples include repeatedly forgetting recent conversations, becoming lost in familiar places or finding it increasingly difficult to manage bills or follow a conversation. These difficulties should not automatically be attributed to age: stress, tiredness, certain illnesses and medicines can also affect memory and thinking.
How can I estimate the age of my brain?
Brain age can be estimated through specialised methods that compare features of your brain with those of people of different ages. One approach combines an MRI scan with machine learning models trained to recognise age-related patterns in brain structure. The result is a statistical estimate, rather than an exact biological age or a diagnosis, and requires interpretation alongside other information about your health.
ZEM’s approach focuses on understanding cognitive health and identifying what deserves attention. The Neuro Balance Programme includes a medical examination, blood tests, neurocognitive assessment and a mental and emotional wellbeing consultation. Together, these help build a picture of your current health and inform personalised guidance, including care focused on stress, rest and cognitive wellbeing. These assessments do not assign a numerical age to your brain; they provide a starting point for understanding your needs and planning appropriate next steps.
What tests are available to assess brain age?
Specialised MRI-based analyses can estimate brain age, while cognitive assessments and selected blood tests help build a broader picture of brain health. These tests answer different questions. Brain-age software analyses an MRI scan using machine-learning models to generate an age estimate from brain structure. A standard MRI scan alone does not provide this estimate, and results vary between models. These methods are being investigated for their clinical usefulness. Research on MRI-based brain-age estimation.
Cognitive assessments examine how well abilities such as memory, attention and language are functioning. They can help identify difficulties that deserve further investigation, but do not directly measure biological brain age. When someone reports cognitive changes, blood tests may also help identify contributing conditions, such as thyroid problems or vitamin B12 deficiency. The appropriate combination depends on symptoms, medical history and clinical judgement.
Beyond assessment, ZEM uses the findings to guide personalised care. Depending on individual needs, this may include personalised neurotherapy and treatments such as RLX BrainGym Metawell®. The approach also extends to the Healthy Brain Boost, specifically designed to support brain health and cognitive wellbeing. The clinical team helps determine which options are appropriate and explains the purpose of each assessment and intervention.
Are brain age and cognitive health related?
Yes. Brain age and cognitive health are related, but they describe different aspects of how the brain is ageing. Brain age is an estimate derived from biological measurements, often MRI scans, while cognitive health concerns abilities such as memory, attention, learning and reasoning.
For an individual, a brain-age estimate is most useful when considered alongside how they are functioning in everyday life. Remembering appointments, following conversations and managing familiar tasks provide practical context, while cognitive assessments examine specific abilities in more detail. Sleep, mood, medicines and existing health conditions also deserve consideration when interpreting difficulties. A higher estimated brain age alone does not diagnose cognitive impairment or dementia; a clinical assessment helps establish whether there is a meaningful change and what support or further investigation may be appropriate.
Are there ways to improve my brain's health and longevity?
Yes. Healthy habits and appropriate preventive care can support brain function as you age and help reduce the risk of dementia. The National Health Service (NHS) in England highlights a useful principle: what benefits your heart also benefits your brain. Regular physical activity, a balanced diet and maintaining healthy blood pressure are practical foundations, alongside attention to hearing difficulties, persistent low mood and social isolation.
“Reducing the brain to a number does not tell us enough. We are much more interested in how the person is functioning: how they think, how they move, how they sleep, how they adapt and where there may be opportunities to intervene”.
– Dr Francisco Mira
Mentally stimulating activities, such as sudoku, crosswords, chess or learning a new skill, can also provide enjoyable ways to challenge your mind. Practice can improve performance on the tasks involved, although evidence that these games alone prevent dementia remains limited. Making mental challenges part of a varied routine, together with movement and meaningful social contact, offers a practical approach to caring for your brain over time.
Can diet help preserve memory and thinking skills?
Yes. Diet can support brain health as you age. A Mediterranean-style diet is associated in some studies with better preservation of memory and thinking skills. Its benefits for cardiovascular and metabolic health also make it relevant to caring for the brain. Evidence on preventing dementia is less consistent, so nutrition is best understood as one part of a broader approach to lifelong brain health.
Foods that can support brain health include leafy green vegetables, berries, pulses, whole grains, nuts, oily fish and extra virgin olive oil. Together, they provide a variety of nutrients, including omega-3 fats from oily fish and antioxidant compounds from plant foods. Making these ingredients part of a varied Mediterranean-style diet may help support memory and thinking as you age, with the overall eating pattern mattering more than any single food.
What are the latest treatments for brain cell loss?
Treatment for brain cell loss depends on its underlying cause. One area of recent progress is the treatment of early Alzheimer’s disease. For selected patients, newer medicines such as Donanemab (Kisunla) target amyloid deposits in the brain and can slow cognitive decline. These treatments do not replace lost neurons or reverse the disease.
Donanemab is intended for patients who meet specific diagnostic and eligibility criteria. It requires specialist medical assessment, prescription and ongoing monitoring, including MRI scans because of risks such as brain swelling and bleeding. It is not a treatment for general brain ageing. This information is provided for educational purposes and does not constitute a recommendation to use this medicine.
Are there any scientific studies supporting quick brain rejuvenation?
Research has shown that some age-related changes in the brain can be modified experimentally, but this does not establish a safe, reliable way to rapidly rejuvenate the human brain. A peer-reviewed study published in Nature reported improvements in memory and certain cellular processes in aged mice. These findings help researchers explore potential approaches to brain ageing, but they do not demonstrate that the same effects can be achieved safely in people. Establishing that would require clinical studies assessing both safety and lasting benefits in humans.
Further reading on brain health
Useful starting points include The Brain Health Book by John Randolph and the educational resources from Alzheimer’s Research UK and Alzheimer’s Society.
For an accessible book, Randolph’s The Brain Health Book: Using the Power of Neuroscience to Improve Your Life explores research on physical activity, mental stimulation, social connection and nutrition, with exercises to help readers translate that knowledge into everyday habits.
For free online learning, Alzheimer’s Research UK’s Think Brain Health offers a clear introduction to caring for your brain, organised around looking after your heart, staying mentally active and keeping connected with others. Alzheimer’s Society also provides practical explanations of the differences between normal ageing and changes that deserve medical attention.
Together, these resources help readers understand both how to support cognitive health and when to seek professional guidance.
Understanding your brain health with ZEM
Perhaps you want to understand changes in your concentration, address ongoing stress, improve your sleep or take a more informed approach to your future brain health. A useful starting point is to discuss how you feel, what you have noticed and how these concerns affect your everyday life.
ZEM’s Neuro Balance Programme combines detailed clinical assessment, cognitive and functional evaluation, movement, sleep, lifestyle medicine and selected non-invasive neurotechnologies.
The programme begins with an in-depth brain-health evaluation performed by ZEM’s expert clinical team. Neurological, cognitive, functional, emotional, sleep and physical-performance information is considered together to obtain a detailed, clinically meaningful picture of the individual’s brain health”.
Once this evaluation has been completed, the findings are integrated into an individual brain-health profile. The personalised Neuro Balance plan is then defined by the ZEM clinical team with the supervision of Dr Francisco Mira, Neurologist and Director of Brain Health at ZEM.
This clinical oversight is fundamental: the programme is built around the individual, not around a device, a predefined package or a standard combination of technologies.
The Neuro Balance pathway can be understood through six stages:
Assess. Personalise. Activate. Integrate. Measure. Maintain.
Sources and references:
- Navarro-González, R., et al. (2026). Ultra-fast MRI for brain-age prediction in a real-world cognitive disorders clinic. Frontiers in Aging Neuroscience, 18, 1731909.
- European Medicines Agency (2026). Kisunla: EPAR – Product information.
- National Health Service (NHS) (2023). Can dementia be prevented?
- National Health Service (NHS) (2023). Tests for diagnosing dementia.
- Iram, T., et al. (2022). Young CSF restores oligodendrogenesis and memory in aged mice via Fgf17. Nature, 605, 509–515.
- Elliott, M. L., et al. (2021). Brain-age in midlife is associated with accelerated biological aging and cognitive decline in a longitudinal birth cohort. Molecular Psychiatry, 26, 3829–3838.
- Randolph, J. (2020). The Brain Health Book: Using the Power of Neuroscience to Improve Your Life. W. W. Norton & Company.
