Exercise guide
Being physically active is one of several things that may lower your risk of dementia, and it is good for your heart, blood pressure and blood sugar, which matter for the brain too. Active people are about 20% less likely to develop dementia, but part of that is because activity often drops in the years before dementia is diagnosed, and exercise trials show only small effects on memory and thinking.
If you or someone close to you has dementia, exercise hasn't been shown to slow the dementia itself, but it may help with everyday activities and fitness, and guidelines recommend it to prevent falls. Walking, dancing, tai chi, seated exercise and strength and balance routines all count: choose what the person enjoys, and do it together when balance or memory makes that safer.
This guide covers what the research shows about risk, why it is hard to study, how much to do, what exercise can and can't do with dementia, safety and supervision, and moves with 3D demos and workouts to follow.
The 2024 Lancet Commission on dementia, as summarised by Alzheimer Europe, lists physical inactivity among 14 risk factors that could be changed, and estimates that 45% of dementia could potentially be prevented if all 14 were removed. The NHS says around 4 in 10 cases could be prevented by changing the risk factors we can change.
Across 58 studies, people who were more active were about 20% less likely to develop dementia. These are observational studies, so they can't prove cause and effect.
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Activity often falls in the years before dementia is diagnosed. When activity was measured 10 or more years before diagnosis, inactive people were no more likely to develop dementia.
Exercise trials show small effects on memory and thinking at best. A Cochrane review found no benefit from aerobic exercise in healthy older adults, and a 2-year activity programme in 1,635 people aged 70 to 89 didn't improve thinking or reduce dementia.
Exercise may help people keep doing everyday activities and it improves fitness, but it hasn't been shown to slow dementia, and Alzheimer's Society says the same. Guidelines strongly recommend exercise to prevent falls in mild to moderate dementia.
The World Health Organization (WHO) recommends physical activity for adults with normal thinking to reduce the risk of decline in thinking. It also helps the heart, blood pressure and diabetes, which matter for dementia too.
Dementia is a group of related symptoms linked to an ongoing decline in brain functioning: memory loss, slower thinking, and problems with language, understanding, judgement, mood, movement and daily activities. It isn't a natural part of ageing. Alzheimer's disease and vascular dementia are the most common types.
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More than 944,000 people in the UK have dementia, including 1 in 11 people over 65. Alzheimer's Society estimates around a million, rising to 1.4 million by 2040.
The NHS lists age, genes (rarely on their own), air pollution, hearing loss, untreated depression, loneliness and sitting for most of the day. The Lancet Commission's 14 factors, as Alzheimer Europe summarises them, are low education, hearing loss, high blood pressure, smoking, obesity, depression, physical inactivity, diabetes, too much alcohol, head injury, air pollution, social isolation, high LDL (low-density lipoprotein) cholesterol in midlife and untreated vision loss.
Active people seem less likely to develop dementia in long studies, activity may benefit the brain directly, and, probably more importantly, it improves blood pressure, insulin resistance and cholesterol. Inactivity raises the risk of heart disease, obesity and type 2 diabetes, which are all linked to a higher risk of dementia.
Memory or thinking problems that fall short of dementia are called mild cognitive impairment (MCI). The WHO makes a weaker recommendation for physical activity in this group, based on low-quality evidence.
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Across 58 studies (257,983 people), more active people were about 20% less likely to develop dementia, 14% less likely to develop Alzheimer's disease and 21% less likely to develop vascular dementia, including in studies that followed people for 20 years or more; there were signs that studies without a link may have gone unpublished. A 2026 update of 74 studies found the same 20%, with leisure-time activity linked to lower risk but activity at work linked to higher risk; the certainty of the evidence was very low to low.
The WHO recommends physical activity to adults with normal thinking to reduce the risk of decline in thinking (a strong recommendation, on moderate-quality evidence). NICE (the National Institute for Health and Care Excellence) lists lack of physical activity among the risk factors that can be avoided, and says the earlier you make changes, the better. The NHS advises the standard activity guidelines.
As summarised by Alzheimer Europe, the 2024 Commission recommends being physically, socially and mentally active, alongside treating high blood pressure, high cholesterol, diabetes, depression and obesity, stopping smoking and drinking less alcohol. Its 45% figure is an estimate for whole populations that assumes the risk factors cause dementia; it is not a promise for one person.
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People often become less active as dementia begins, years before it is diagnosed. In 19 studies (404,840 people), inactivity measured within 10 years of diagnosis was linked to 40% more dementia, but measured 10 or more years before, there was no difference. In the Whitehall II study of 10,308 civil servants followed for 27 years, there was no link between activity and later dementia, and activity started to fall up to 9 years before diagnosis.
On the other hand, in the pooled studies the link held even in studies that followed people for 20 years or more.
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Probably a modest real effect, smaller than the raw figures suggest, and not proven (our reading). The WHO found low to moderate quality evidence that physical activity does not change the risk of dementia, and a small benefit for thinking, mostly from aerobic exercise.
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A Cochrane review of 12 trials (754 people over 55, lasting 8 to 26 weeks) found no benefit from aerobic exercise for thinking, even when fitness improved. Other reviews found small benefits: across 36 studies, a small improvement, with sessions of 45 to 60 minutes at moderate intensity or more; and across 227 studies, improvements in executive function (planning and decision-making), memory and processing speed. The LIFE trial of 1,635 inactive people aged 70 to 89 found that 2 years of walking, strength and flexibility work didn't change thinking, and mild cognitive impairment or dementia developed in 13.2%, against 12.1% with health education.
In FINGER (1,260 people aged 60 to 77 at raised risk), 2 years of diet, exercise, brain training and checks on heart risks improved a test score slightly more than general health advice. In US POINTER (2,111 people aged 60 to 79), a structured programme improved overall thinking slightly more than a self-guided one. Both effects were small, and neither trial has reported fewer dementia diagnoses.
In 296 inactive people with mild cognitive impairment, 18 months of moderate to high intensity aerobic training was no better than stretching, balance and range-of-motion exercises. Thinking stayed stable in both groups, but there was no group that did nothing, so it can't show whether either kind of exercise helped.
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The NHS's advice for lowering the risk of dementia is the standard guideline: at least 150 minutes a week of moderate aerobic activity, such as brisk walking, cycling or dancing, strengthening exercises at least twice a week, and sitting less.
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The WHO points to its activity recommendations for older adults, which include balance work on 3 or more days for people with poor mobility. The NHS asks older adults to include activities that improve strength, balance and flexibility on at least 2 days a week.
In trials that found small benefits for thinking, sessions of 45 to 60 minutes at moderate intensity or more were linked with benefit.
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Our editorial suggestion. To lower your risk: 150 minutes of brisk walking, cycling or dancing, strength exercises twice a week, and less sitting. Living with mild dementia: a daily walk with company on a familiar route, a seated or standing strength and balance routine 2 to 3 times a week, and a dance, tai chi or other class you enjoy. With moderate dementia: the same, supervised by a carer or professional at first, with seated options on tired days.
In a Cochrane review, exercise programmes may help people with dementia keep doing everyday activities (6 trials, 289 people), though the evidence was very low quality. In one trial, carers' burden fell when they supervised exercise at home.
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In the largest trial, DAPA, 494 people with mild to moderate dementia did 4 months of supervised, moderate to high intensity aerobic and strength training. Their walking distance improved during the programme, but a year on their thinking was very slightly worse than in the comparison group, and daily activities, behaviour and quality of life didn't differ. A Cochrane review found no clear benefit for thinking, and a later review found a small one. Alzheimer's Society says physical activity hasn't been shown to slow or prevent dementia from progressing.
Cochrane found no clear benefit for depression or behaviour; a 2023 review found small improvements in both. For sleep problems, NICE suggests a personal plan that includes daylight, exercise and activities the person enjoys.
Alzheimer's Society suggests choosing by what the person enjoys and can manage: everyday tasks, seated exercises, tai chi or qigong, yoga or Pilates, indoor bowls, walking, gardening, swimming, an exercise bike, dancing (seated if needed) and walking football. The NHS suggests a daily walk or gardening, tai chi or dancing, and dementia-friendly sessions.
Alzheimer's Society suggests aiming for around 150 minutes of moderate activity a week if you feel able, strength, balance and flexibility work on two or more days, and some cardio on most days, even if only light. Short periods of light exercise are better than none.
NICE asks services to offer a range of activities to promote wellbeing, tailored to the person's preferences, and group cognitive stimulation therapy for mild to moderate dementia.
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The World Falls Guidelines strongly recommend offering exercise to prevent falls to people with mild cognitive impairment or mild to moderate dementia who live at home, such as tai chi or strength and balance training, and ask clinicians to involve carers. Exercise seemed to work better at home than in care homes.
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The trial evidence is mixed. Pooling 7 trials (1,314 people) found fewer people falling in one analysis but no effect in another; a review of 12 trials (1,827 people) found too little evidence to be sure; and another found 30% fewer falls, driven by a few trials, with low-quality evidence.
Alzheimer's Society advises speaking to a GP, physiotherapist or other health professional before starting a new activity, especially with heart problems, high blood pressure, unexplained chest pain, dizziness or fainting, bone, joint or breathing problems, balance problems or frequent falls.
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Stop any activity that causes pain or makes you feel unwell, dizzy or short of breath, and speak to the GP.
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If you exercise alone, let someone know where you'll be, keep a mobile phone with you, and keep to familiar routes. Ask someone to stay with you for exercises such as sitting upright without support.
With moderate to severe dementia, UK guidelines say new exercises might best be supervised at first by a trained professional. NICE asks falls services to give people with dementia the extra support they need to take part.
Alzheimer's Society notes that seated exercises can strain the lower back, and advises checking with the GP first. Warm up before more vigorous activities.
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Choose what the person enjoys, and do it together. Walk most days, building towards 150 minutes a week, and do strength moves a couple of times a week, 1 to 2 sets of 8 to 12 (our suggestion). Filled water bottles work as weights.
3D demoTreadmill walkingBeginner · Cardio machine
3D demoStanding marchBeginner · No equipment
3D demoSeated marchBeginner · A bench or box
3D demoStationary cyclingBeginner · Cardio machine
3D demoStanding punches (shadow boxing)Beginner · No equipment
3D demoSit to stand from a chairBeginner · A bench or box
3D demoSeated knee extension (chair)Beginner · A bench or box + Something with weight
3D demoSlow calf raiseBeginner · A wall
3D demoWall push-upBeginner · A wall
3D demoBand rowBeginner · A band + An anchor point
3D demoSeated dumbbell curlBeginner · A dumbbell + A bench or boxBalance moves at a counter, with someone nearby: start with 3 holds of 10 seconds (our suggestion). The seated moves and slow breathing suit tired or unsettled days.
3D demoSide-stepping (sideways walking)Beginner · A wall
3D demoSemi-tandem stanceBeginner · A wall
3D demoSingle-leg standBeginner · A wall
3D demoTandem stance and heel-to-toe walkBeginner · A wall
3D demoThoracic rotationBeginner · No equipment
3D demoBreath reachBeginner · No equipment
3D demoSeated upper-back lift (sit tall, shoulders back)Beginner · A bench or box
3D demoSlow breathing (6 breaths a minute)Beginner · No equipmentDo them together. Strength and balance training is one of the kinds of exercise falls guidelines recommend in mild to moderate dementia. Leave out the floor transfer and tree pose in the balance routine unless the person is steady, and check with the GP before seated routines if back pain is a worry.
A 40-minute strength and balance session for over-65s, built from the Otago home programme and NHS exercises, using a chair, a counter and a step.
40 minBeginner18 movesA bench or box, Something with weightA 20-minute seated workout for older adults who cannot stand for long: marching, leg and arm strength, posture, and sit-to-stands that lead back to standing.
20 minBeginner11 movesA bench or box, Something with weightBalance practice in 10 minutes: tandem stance, single-leg stands, marches, heel walks, tree pose and floor transfers.
10 minBeginner7 movesA wall, A bench or boxA steady 30 to 45 minute cardio session at talk-but-not-sing pace: walk, cycle, row or cross-train, counting toward weekly activity guidelines.
40 minBeginner3 movesCardio machine, A wallA 25-minute standing cardio circuit with no jumping: marching, step jacks, sit-to-stands, punches, step-ups and wall push-ups, with a seated option for most moves.
25 minBeginner9 movesA bench or box, A stepA 10-minute session for low-energy days: marching, sit-to-stands, wall push-ups, step-ups and bridges, then a short walk. Doing a little counts.
10 minBeginner7 movesA bench or box, A wallA 20-minute chair Pilates workout for beginners and older adults: breathing, sitting tall, gentle spine and leg moves, and a standing finish at the chair.
20 minBeginner14 movesA bench or box, Something with weightA 25-minute workout done sitting, in a chair or wheelchair: seated cardio intervals, light strength work, posture and stretches, with pacing and cooling built in.
25 minBeginner14 movesA bench or box, A dumbbellFor lowering your risk, and for early dementia with support: strength and balance 3 times a week plus walks.
Call 999 (911 in the US) for chest pain that feels tight or like squeezing, or spreads to the arms, neck or jaw; signs of a stroke, such as face weakness, arm weakness or speech problems; or a fall where someone may have hurt their head, neck, back or hip, or can't get up. Keep them warm and comfortable, and don't try to lift them yourself.
Active people are about 20% less likely to develop dementia in observational studies, but part of that is because activity drops before diagnosis, trials show small effects on thinking at best, and the WHO found low to moderate quality evidence that activity doesn't change dementia risk. Being active is one of several things that may lower your risk, not a guarantee.
The largest trial found no slowing of decline in thinking, and Alzheimer's Society says physical activity hasn't been shown to slow or prevent dementia from progressing. Exercise may help with everyday activities, fitness and falls instead.
NICE recommends group cognitive stimulation therapy, but says not to offer cognitive training to treat mild to moderate Alzheimer's disease.
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In dementia, moderate to high intensity training didn't help thinking, and in mild cognitive impairment, aerobic training was no better than stretching and balance work.
Falls guidelines strongly recommend exercise for people with mild cognitive impairment or mild to moderate dementia. With moderate to severe dementia, UK guidelines suggest supervising new exercise at first, not avoiding it.
Probably a little, but it isn't proven. Active people are about 20% less likely to develop dementia in observational studies, but some of this is because activity falls in the years before dementia is diagnosed. The 2024 Lancet Commission, as summarised by Alzheimer Europe, lists physical inactivity among 14 risk factors that could be changed.
Follow the standard guideline: at least 150 minutes a week of moderate aerobic activity such as brisk walking, cycling or dancing, strength exercises at least twice a week, and less sitting. In trials that found small benefits for thinking, sessions of 45 to 60 minutes at moderate intensity or more were linked with benefit.
No type is proven best. The WHO found the evidence for benefits to thinking strongest for aerobic exercise, and reviews of trials also found benefits from strength training, mixed programmes and tai chi. What helps your heart, blood pressure and blood sugar is likely to help your brain too.
Exercise is still worthwhile. In the US POINTER trial of people at raised risk, the small extra benefit of a structured lifestyle programme was similar in people with and without the APOE4 gene variant that raises the risk of Alzheimer's disease. But no trial has shown that exercise prevents dementia in people with a family history.
It hasn't been shown to. In the largest trial, 494 people with mild to moderate dementia did 4 months of supervised exercise: their walking improved during the programme, but their thinking didn't, and a year on it was very slightly worse. Alzheimer's Society also says physical activity hasn't been shown to slow or prevent dementia from progressing.
Walking, gardening, dancing, tai chi, swimming, seated exercises and strength and balance routines, chosen around what the person enjoys. Exercise may help people keep doing everyday activities, and international guidelines strongly recommend exercise to prevent falls in mild to moderate dementia.
Yes, especially when standing is hard: seated marching, leg lifts and arm exercises keep people moving. Alzheimer's Society advises checking with a GP first, because seated exercises can strain the lower back. When it's possible, add standing balance exercises holding a chair, with someone nearby.
Guidelines strongly recommend it for people with mild cognitive impairment or mild to moderate dementia living at home, using tai chi or strength and balance training, with carers involved. The trial evidence is mixed: some analyses found fewer falls and others didn't. Exercise seems to work better at home than in care homes.
Possibly a little. One review found small improvements in behaviour and depression, while an earlier Cochrane review found no clear benefit. NICE suggests daylight and exercise as part of a plan for sleep problems.
In the early stages, often yes, with care: tell someone where you'll be, carry a mobile phone and stick to familiar routes. With moderate to severe dementia, UK guidelines say new exercise might best be supervised at first by a trained professional. Stop any activity that causes pain or makes you unwell, dizzy or breathless.
It isn't clear. In the FINGER trial, brain training was one part of a 2-year lifestyle programme that improved thinking test scores slightly, so its own effect can't be separated out. For people with mild to moderate Alzheimer's disease, NICE says not to offer cognitive training as a treatment, and it recommends group cognitive stimulation therapy for mild to moderate dementia.
No. The guidelines apply at any age, and any extra activity is a start. Alzheimer's Society says even short periods of light exercise are better than none.
Exercise education, not a diagnosis or treatment plan, and clinical review of these guides is pending. Stop and get advice for chest pain, unusual breathlessness, dizziness or fainting, or new pain, and check with your doctor or midwife first if they have told you to limit activity. Health disclaimer.
