sleep

By Helen Chow, ND, Dip Herb, UK-qualified Naturopath & Herbalist
Nutrition & Food Design Coach, Designer Realities Mind Coach
Article Published on 26th November 2020. Reviewed & Updated on 21st September 2026 

You walk into a room and forget why you went there. A familiar name refuses to arrive until ten minutes later. You put your glasses somewhere “safe”—so safe that even you cannot find them.

And a small worry appears: Is this normal, or is something happening to my brain?

After 50, that fear can surface surprisingly quickly, especially if you have watched a parent change or you are now helping an older relative manage appointments, medicines and money.

Let us begin by taking the panic out of the conversation.

An occasional lapse is not the same as dementia. Memory can be affected by poor sleep, unrelenting stress, grief, depression, pain, menopause symptoms, illness, hearing loss, alcohol, medicines and simply trying to hold too many things in your head at once. Some contributors are temporary. Some are treatable. And some changes need a proper assessment rather than a bottle of “brain” capsules from the internet.

There is no guaranteed way to prevent every dementia. Age, genes and chance still matter. But there are meaningful ways to support your brain, reduce some risks and protect the health and independence you are building for your next twenty years.

That is where I want us to place our attention—not on fear, but on what is useful.

Brain health is more than remembering names

When we say “cognition,” we mean the collection of mental abilities that helps you live your life. It includes:

• learning and remembering information;
• paying attention;
• finding words and understanding language;
• planning and organising;
• solving problems;
• judging situations;
• finding your way around;
• and using familiar skills.

Your brain does not perform each ability at exactly the same speed throughout life. You may take a little longer to retrieve a word or learn unfamiliar technology, yet still reason well, make sound decisions, hold a rich vocabulary and manage a complicated life.

Speed is not the only measure of a healthy mind.

Nor is every difficult day evidence of decline. A night of broken sleep, a week of family crisis or a period of low mood can make concentration and memory feel markedly worse. If your attention never fully received the information, your memory cannot neatly retrieve it later.

Ordinary forgetfulness—or a change worth checking?

There is no perfect home test that draws a bright line between normal ageing and illness. What matters is the pattern, whether it is getting worse and whether it is interfering with everyday life.

Changes that can happen in ordinary life

These may be frustrating, but by themselves they do not necessarily point to dementia:

• forgetting a name and recalling it later
• occasionally misplacing keys or glasses, then retracing your steps
• walking into a room and briefly forgetting what you wanted
• needing more time to learn a new phone or computer system
• forgetting an appointment but remembering it later or using a calendar successfully
• losing your train of thought when tired, interrupted or stressed
• or making an occasional error while still managing your usual responsibilities.

Changes that deserve medical assessment

Please arrange a clinical review if you—or someone close to you—notice a persistent or progressive change such as:

• repeatedly asking the same question without remembering the answer
• getting lost in a familiar place
• difficulty managing money, medication, cooking, travel or work that you previously handled
• regularly struggling to follow a familiar recipe or sequence of tasks
• marked changes in judgement, personality, behaviour or social withdrawal
• difficulty finding ordinary words or following conversation that is becoming more frequent
• confusion about dates, places or people
• putting objects in very unusual places and being unable to retrace your steps
• or memory and thinking problems that interfere with safety or independence.

You do not need to wait until a change becomes dramatic. An assessment may include a history, a review of medicines, mood, sleep, hearing and daily function, a brief cognitive assessment, blood tests and—when appropriate—specialist evaluation or imaging.

The purpose is not merely to attach a frightening label. It is also to look for contributors that can be treated or better managed.

Sudden confusion is different

Sudden confusion developing over hours or days is not normal ageing. It may be delirium caused by infection, dehydration, medication, metabolic disturbance or another acute illness. Sudden trouble speaking, facial weakness, one-sided weakness, severe imbalance or a sudden unusual headache may indicate a stroke.

Seek urgent local medical help for sudden confusion or stroke-like symptoms.

Do not diagnose yourself from one bad week

A brain under pressure may feel very different from a rested brain.

Perhaps you are working, caring for a parent, answering family messages, planning meals, sleeping lightly and trying to remember six appointments belonging to three different people. Your mental bandwidth is not infinite. Forgetting one item from that crowded list does not automatically mean your brain is degenerating.

Equally, please do not dismiss a sustained change as “just stress” without checking it.

Good assessment holds both possibilities at once: it does not turn ordinary lapses into catastrophe, and it does not ignore changes that are affecting your life.

Can dementia risk be reduced?

Risk reduction is not the same as guaranteed prevention.

The 2024 Lancet Commission identified fourteen potentially modifiable factors across life that are associated with dementia risk: less education, hearing loss, high LDL cholesterol, depression, traumatic brain injury, physical inactivity, diabetes, smoking, high blood pressure, obesity, excessive alcohol, social isolation, air pollution and untreated vision loss.

Researchers estimated that addressing these factors could prevent or delay a substantial proportion of dementia cases at population level. That is hopeful—but it must not be translated into “if you live correctly, you will not develop dementia”.

An association is not a personal guarantee. Some risks are shaped by income, education, housing, work, pollution and access to healthcare, not simply by individual choice. And a woman who develops dementia has not failed a lifestyle examination.

The sensible message is this: several of the things that protect your heart, senses, movement and social life are also connected with better brain health. They are worth doing because they improve life now, even though nobody can promise the future.

Your heart and your brain share the same circulation

The brain is energy-hungry tissue supplied by an intricate network of blood vessels. Vascular damage can contribute to stroke, small-vessel disease and cognitive decline, and it often overlaps with Alzheimer’s disease rather than sitting in a separate box.

This is why blood pressure, blood sugar, cholesterol, smoking and physical activity belong in a brain-health conversation.

Know your blood pressure

High blood pressure may produce no obvious symptoms while affecting blood vessels over many years. Have it checked, understand your personal target and follow qualified advice about treatment. Do not stop prescribed medication because a supplement advert promises to “support circulation”.

Take metabolic health seriously—without shame

Diabetes and metabolic ill health are among the factors associated with increased dementia risk. That does not mean one high glucose reading has damaged your brain or that every woman with diabetes will develop dementia.

It does mean that understanding insulin resistance, monitoring the numbers relevant to you and working with your clinician are part of caring for both body and brain.

If you smoke, support matters

Stopping smoking at any age is worthwhile. Dependence is not a character defect, and many people need structured support, medication or more than one attempt. The aim is not a lecture; it is to reduce exposure to something that harms blood vessels as well as lungs.

Treat the whole cardiovascular picture

Ask about blood pressure, glucose or HbA1c, blood lipids and your overall cardiovascular risk rather than chasing one perfect number in isolation. The right targets and treatments depend on your health history.

Movement is brain care

You do not need to perform a special “brain workout” while ignoring the rest of your body.

Physical activity supports cardiovascular health, blood pressure, glucose regulation, mood, sleep, mobility and the ability to remain engaged with life. These pathways are relevant to brain health, even though no exercise routine can guarantee protection from dementia.

Aim for a mixture that suits your health and current ability:

• regular walking or another form of aerobic movement
• resistance work for strength and muscle
• balance practice
• mobility through a comfortable range
• and fewer long, unbroken periods of sitting.

If you are returning after illness, pain or a long inactive period, begin with the practical guide to staying active after 50. For progressive resistance work, the separate muscle-health guide explains why strength matters and how to start intelligently.

The best activity is not the one that looks most impressive online. It is one you can do safely, adapt and repeat.

Hearing and vision are not side issues

If you cannot hear clearly, conversation demands more effort and social gatherings become tiring. You may withdraw, miss information or appear forgetful because you did not fully hear what was said.

Untreated hearing loss is associated with dementia risk. The evidence does not mean hearing aids guarantee prevention, but it gives us another good reason not to dismiss hearing loss as a trivial inconvenience. If the television keeps getting louder, conversation is becoming hard to follow or you avoid noisy rooms, arrange a hearing assessment.

The same practical respect applies to eyesight. Untreated vision loss can reduce reading, movement, confidence, driving, hobbies and social participation. Keep up with eye examinations and use the correction or treatment recommended for you.

Glasses and hearing aids are not symbols of decline. They are tools that help your brain stay connected to the world.

Sleep gives the brain a fair chance

One poor night can make attention, word-finding and memory feel dreadful the following day. Persistent poor sleep can also interact with mood, appetite, blood pressure, insulin sensitivity and physical activity.

After 50, sleep may be disrupted by hot flushes, pain, urinary symptoms, medicines, anxiety, restless legs, snoring or the vigilance of caring for someone else. Please do not assume that every sleep problem requires the same bedtime trick.

Our full guide to sleep and stress after 50 explains practical recovery and when insomnia or possible sleep apnoea deserves assessment.

Loud snoring, witnessed pauses in breathing, choking during sleep, morning headaches or persistent daytime sleepiness are reasons to discuss sleep apnoea with a clinician. Treating a genuine sleep disorder is more useful than buying a fashionable “nootropic” while the cause remains untouched.

Stress, depression and grief can look like a memory problem

When your mind is constantly scanning for the next problem, it has fewer resources available for attention and recall. Chronic caregiving pressure can make you feel foggy, indecisive and unlike yourself.

Depression can also affect concentration, processing speed, motivation and memory. So can anxiety, trauma and prolonged grief. These symptoms are real; “psychological” does not mean imaginary.

Please seek help if low mood, loss of pleasure, anxiety, hopelessness or cognitive difficulty is persistent. Depression and cognitive illness can occur separately or together, so neither should be assumed without assessment.

If caring for a parent has swallowed the edges of your own life, the guide to caring without losing yourself may help you make space for support, boundaries and your own future.

Your brain is part of your life—not a machine sealed away from sorrow, responsibility and exhaustion.

Food patterns matter more than miracle brain foods

Blueberries are nutritious. Olive oil can be useful. Oily fish provides valuable nutrients. None is a force field around your brain.

Research commonly links Mediterranean-style and similar dietary patterns with better cardiovascular and cognitive outcomes. These patterns generally emphasise minimally processed foods, vegetables and fruit, legumes where tolerated, fish, nuts or seeds where suitable, and unsaturated fats. But much of the evidence is observational, individual tolerance matters and no single named diet has been proved to prevent dementia in everyone.

The useful principles are less glamorous:

• eat enough protein and energy to protect muscle and prevent undernutrition
• include a variety of nutrient-rich foods you tolerate
• choose minimally processed food more often than ultra-processed convenience products
• include sources of omega-3 fats where appropriate
• avoid turning alcohol into a brain-health strategy
• and adapt the pattern to your culture, health conditions, budget and digestion.

For a broader foundation, use the healthy-eating framework. On days when work or caregiving wrecks the plan, healthy eating in real life will help you build sensible backups rather than abandon the week.

Do not overlook undernutrition.

Brain-health discussions often focus on excess, yet women can also eat too little—especially during illness, grief, caregiving or aggressive dieting. Weight loss accompanied by inadequate protein and nutrients may cost muscle, resilience and independence.

Vitamin B12 deficiency, thyroid disease, anaemia and other medical problems can contribute to fatigue or cognitive symptoms. That does not mean everyone needs an enormous supplement panel. It means persistent symptoms deserve a proper history and appropriately chosen tests.

Be sceptical of “brain” supplements

The supplement aisle is full of certainty that the research does not possess.

Products may promise sharper memory, better focus, “neuroprotection” or reversal of brain ageing. A convincing advert, laboratory-sounding ingredient and customer testimonial are not proof that a product prevents dementia or treats cognitive impairment.

Important questions include:

• Has this exact product—not merely one ingredient—been tested in people like you?
• Was the study large, long enough and independently funded?
• Did it measure meaningful daily function, or only a small change on one test?
• Is the dose safe with your medicines and medical conditions?
• Has the product been independently checked for identity and contamination?

Ginkgo, high-dose vitamins, proprietary nootropic blends and many other products have not earned the sweeping claims used to sell them. More is not always safer. High doses can cause adverse effects or interact with anticoagulants, antiplatelet medicines, blood-pressure drugs, diabetes medicines and other treatments.

Correcting a confirmed deficiency is different from taking a large cocktail “just in case”. Discuss supplements with a qualified clinician or pharmacist who can see your full medication list.

As a herbalist, I value plants. I also value accurate claims, sensible dosing and knowing when a herb is not the answer.

Review medicines—but do not stop them yourself

Some prescription and non-prescription medicines can contribute to drowsiness, confusion or memory problems, particularly when several are combined. Examples may include medicines with anticholinergic effects, some sedatives, certain antihistamines and some bladder treatments. The balance of benefit and risk is individual.

Ask a doctor or pharmacist for a medication review if cognitive symptoms began after a new medicine or dose change, or if you take a long list of products from several prescribers.

Bring everything: prescriptions, over-the-counter sleep remedies, antihistamines, pain medicines, herbs and supplements.

Do not abruptly stop a prescribed medicine. Withdrawal or loss of treatment can be more dangerous than the suspected side effect.

Learning helps—but puzzles are not a shield

Crosswords are pleasant if you enjoy crosswords. Sudoku is useful if you enjoy Sudoku. Neither is compulsory, and repeatedly practising one puzzle mainly makes you better at that puzzle.

A richer approach is to keep asking your brain to pay attention, adapt and participate:

• learn a language, song, dance, recipe or digital skill
• read something that stretches you and discuss it
• teach somebody what you know
• take a different walking route
• join a class or community project
• play music
• garden, design, write, make or repair something
• or learn the history and food of another culture

Choose activities with meaning. Curiosity is easier to sustain when it belongs to a life you actually want.

Social connection is biologically and emotionally relevant

Conversation uses attention, language, memory, emotion and interpretation. Friendship can encourage movement, laughter, practical help and a sense that you still belong somewhere beyond your responsibilities.

Social isolation is associated with poorer health and increased dementia risk, but “be more social” can be glib advice. Hearing difficulty, bereavement, caring duties, money, disability, migration and lack of transport may all narrow a woman’s world.

Start with one realistic point of connection:

• a regular call with someone who leaves you feeling better
• a walking companion
• a church, cultural or neighbourhood group
• a class where the same people meet each week
• volunteering for a cause that matters to you
• or asking family to share care so you can remain part of your own community.

Connection need not mean a crowded calendar. One dependable relationship can matter more than fifty names in a telephone.

Purpose is not a luxury reserved for retirement

Purpose does not have to be grand. It may be caring for a garden, building a small business, helping a grandchild, mastering a craft, contributing to your community or finally giving an old idea room to grow.

The important distinction is that your life contains something beyond reacting to the next demand.

When you have spent years looking after everyone else, imagining your own future may initially feel selfish or even impossible. It is neither. A future that calls you forward gives movement, learning, connection and self-care a reason to remain in the diary.

This is one reason Reclaim is larger than weight loss. Health supports the life you are designing; it is not another temporary project you must perform perfectly.

Alcohol: more is not better for the brain

Alcohol can disturb sleep, interact with medicines, increase falls and blood pressure, and at high exposure directly harm the brain. Heavy drinking is a recognised dementia risk factor.

You may still encounter the idea that a daily glass of wine protects the brain. Observational findings have been complicated by differences in health, income, diet and drinking patterns. Alcohol should not be started or increased as a health intervention.

If you drink, keep within the guidance relevant to your country and health, include alcohol-free days and discuss your intake honestly if sleep, mood, blood pressure, falls or medicines are concerns. If cutting down is difficult, ask for support rather than hiding it.

Protect your head

Traumatic brain injury is another modifiable risk factor. Use a seat belt and appropriate helmet, take falls seriously and make practical changes if balance, eyesight, medicines or hazards in the home are increasing your risk.

Strength and balance work are not only about toned muscles. They help protect your ability to move through the world with confidence.

A practical brain-health plan for a busy woman

You do not need to turn brain health into a full-time occupation. Begin with the foundation most relevant to you.

1. Establish your health baseline

Know your blood pressure and discuss glucose, cholesterol and cardiovascular risk with your clinician when appropriate. Keep routine eye, dental and hearing care on the list.

2. Choose movement you can repeat

Walk, dance, cycle, swim or use a chair-based option according to your ability. Add strength and balance rather than relying on one form of exercise alone.

3. Give sleep problems a name

Is the problem pain, hot flushes, insomnia, snoring, restless legs, medication, anxiety or being woken by somebody else? The cause guides the solution.

4. Build meals around nourishment

Start with a meaningful protein source and add the foods you tolerate that provide colour, minerals, healthy fats and satisfaction. Keep easy backups for chaotic days.

5. Check your senses

Book the hearing or eye assessment you have postponed. Better input can make participation, confidence and memory easier.

6. Learn something that matters to you

Ten purposeful minutes most days can be more realistic than an ambitious course abandoned in a week.

7. Protect one human connection

Put one recurring call, walk, meal or group in the calendar. Do not leave every relationship to “when life calms down”.

8. Review persistent changes

Record when the problem began, whether it is worsening, how it affects daily life, recent illnesses or losses, sleep, alcohol and every medicine or supplement you take. Bring the list to a clinician.

You can start with one or two steps. Consistency grows more easily from a life-sized plan than from a burst of fear.

When to ask for help

Arrange a routine clinical assessment when memory or thinking changes:

• persist or worsen
• are noticed by somebody who knows you well
• interfere with work, money, medication, cooking, driving or familiar tasks
• occur alongside depression, major sleep difficulty, hearing problems or medication changes
• or simply concern you enough that you keep searching for reassurance.

Seek urgent help for sudden confusion, sudden neurological symptoms, a rapid change after illness or injury, or immediate safety concerns.

If a parent is changing, try to approach the conversation with specific observations rather than accusation: “I noticed the electricity bill was paid three times and you seemed worried. Shall we book an appointment together?”

An early conversation may uncover a fixable problem. If the cause is more serious, it also creates time for treatment discussions, support and planning while the person can take part.

A Health Sifu Note

I do not want you monitoring every forgotten word as though your brain is sitting an examination.

Your mind has carried decades of work, relationships, losses, decisions, recipes, journeys and lessons. It may occasionally need more time. It may also be tired, under-slept or carrying far too many lives at once.

Respect a genuine change enough to have it assessed. But do not let fear persuade you that life after 50 is a long mental retreat.

Care for the circulation that feeds your brain. Move your body. Nourish yourself. Correct what you cannot hear or see. Sleep when you can and seek help when you cannot. Stay connected. Keep learning. Keep something in your future that belongs to you.

These choices cannot write a guarantee. They can help you remain present, capable and engaged in the life you are building now.

Health Sifu
Make Smarter Choices
Consciously. Deliberately.

Scientific References & Further Reading

1. Livingston G and colleagues — Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission. This major evidence review added untreated vision loss and high LDL cholesterol to twelve previously identified potentially modifiable risk factors. Its population estimate is about risk reduction or delay—not a guarantee for an individual. Read the open-access Commission.
2. World Health Organization — Risk reduction of cognitive decline and dementia: WHO guidelines, second edition (2026). Current international guidance evaluating lifestyle and health interventions for cognitive decline and dementia risk reduction. Visit the WHO guideline page.
3. National Institute on Aging — Cognitive Health and Older Adults. Accessible guidance on physical health, medicines, diet, activity, connection and the limits of commercial brain-training claims. Read the NIA guide.
4. National Institute on Aging — Memory, Forgetfulness, and Aging: What’s Normal and What’s Not? A practical distinction between ordinary age-related lapses, mild cognitive impairment, dementia and potentially treatable contributors to memory problems. Read the NIA memory guide.
5. Alzheimer’s Association — 10 Early Signs and Symptoms of Alzheimer’s and Dementia. Plain-language examples contrasting ordinary age-related changes with patterns that may interfere with daily life and merit assessment. Read the warning-sign guide.
6. Lin FR and colleagues — Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE trial, 2023). The intervention did not change cognitive decline across the entire study population over three years, but a prespecified higher-risk group benefited. This is important evidence for a careful rather than exaggerated hearing claim. Read the trial in The Lancet.
7. National Institute on Deafness and Other Communication Disorders — Age-Related Hearing Loss. Clear information on symptoms, assessment and treatment options for hearing loss. Read the NIDCD resource.
8. National Eye Institute — Healthy Vision Tips. Practical advice on comprehensive eye examinations, chronic-disease management, protective habits and symptoms requiring care. Read the NEI guidance.
9. World Health Organization — Dementia fact sheet. International overview of dementia, risk factors, symptoms, diagnosis, treatment and support. Read the WHO fact sheet.
10. National Center for Complementary and Integrative Health — Alzheimer’s Disease and Complementary Health Approaches. Evidence-focused information on supplements and complementary approaches, including the lack of convincing evidence that common products prevent or treat Alzheimer’s disease. Read the NCCIH review.
11. National Institute on Aging — What Do We Know About Diet and Prevention of Alzheimer’s Disease? A balanced explanation of Mediterranean/MIND-style patterns, nutrients and why promising associations do not yet amount to a guaranteed preventive diet. Read the NIA nutrition overview.
12. National Institute on Aging — Sleep Apnea and Older Adults. Information on symptoms, health effects, diagnosis and treatment of sleep apnoea in later life. Read the NIA sleep-apnoea guide.

This article is educational and is not a diagnosis or a substitute for individual medical care. Seek urgent local help for sudden confusion, stroke-like symptoms or immediate safety concerns.