Dementia Information Service
Overview
A dementia information service is a team or helpline that gives free, trusted advice to anyone worried about memory problems, to people who have been told they have dementia, and to the family and friends who care for them. Dementia itself is not one illness. It is a word for a group of symptoms caused by changes in the brain. These changes make it harder to remember things, think clearly, work out problems and do everyday tasks. Dementia is not a normal part of getting older, and a lot can be done to help people live well after a diagnosis.
Key facts
- Dementia is caused by brain changes, not by normal ageing. Being a bit forgetful now and then is common, but dementia affects daily life in a way that keeps getting worse.
- An information service can help you understand what is happening, plan ahead, find local support and know what to ask your doctor. You do not need a diagnosis to use it.
- There is no cure yet, but the right support, routines, treatment of other health problems and help for carers can make a real difference for years.
Yes. Dementia is common. In the UK, roughly 1 in 11 people over the age of 65 has dementia, and around the world tens of millions of people are living with it. Because it is so common, information and support services exist in most areas.
Dementia mostly affects older adults, and the risk rises with age. But it can affect younger people too — some people are diagnosed in their 40s, 50s or early 60s. It also affects partners, children, grandchildren and friends, who often become carers. Anyone can contact a dementia information service, whether they have a diagnosis or are simply worried.
Symptoms
- A person with dementia has wandered off and is missing, especially in bad weather or near traffic or water
- Sudden severe confusion, drowsiness or difficulty waking that comes on over hours
- Signs of a stroke — face drooping, arm weakness, slurred speech — even if they seem to pass
- A fall with a head injury, especially if the person takes blood-thinning medicine
- Suddenly becoming very agitated, aggressive or frightened in a way that puts them or others in danger
- Trouble breathing, chest pain, or choking that does not clear
- ⚠A new or quickly worsening confusion that started in the last day or two
- ⚠A high temperature, a new cough, or pain when passing urine along with more confusion than usual
- ⚠Not drinking or eating much for more than a day
- ⚠A big change in behaviour, sleep or mood that comes on suddenly
- ⚠Repeated falls or a noticeable new problem with walking
Common symptoms
- Forgetting recent events, names or appointments, or asking the same question again and again
- Struggling with familiar tasks, like paying bills, cooking a usual meal or following a recipe
- Trouble finding the right word, or losing the thread of a conversation
- Getting confused about time or place, such as not knowing why you went into a room or getting lost on a known route
- Misplacing things and putting them in odd places, like keys in the fridge
- Poor judgement, such as being unusually vulnerable to scams
- Changes in mood or personality — feeling low, anxious, irritable or suspicious
- Withdrawing from hobbies, friends or conversations because they feel harder
Symptoms in children
- Dementia itself is very rare in children. When a child shows learning or memory difficulties, doctors look for other causes first.
- More often, a child is affected because a grandparent or parent has dementia. They may feel confused, frightened or left out, or worry that they caused it.
- Children often notice changes before adults realise — such as a grandparent repeating questions or forgetting their name. Simple, honest explanations help.
- A dementia information service can suggest books, activities and ways to keep children involved in a safe, reassuring way.
Symptoms in older adults
- Memory changes are more common with age, but dementia is not an inevitable part of growing old.
- Older adults may also have other conditions — such as hearing loss, depression, thyroid problems or vitamin deficiencies — that can look like dementia and can be treated.
- A sudden change in confusion over hours or days is not usually dementia getting worse. It is often an infection, dehydration, constipation, pain or a medicine side effect, and needs medical attention quickly.
- Falls, poor sleep and loneliness can make thinking problems seem worse, so these are worth raising with a doctor.
Causes
Main causes
- Alzheimer's disease — the most common cause, where proteins build up in the brain over many years
- Vascular dementia — caused by reduced blood flow to parts of the brain, often after small strokes
- Lewy body dementia — linked to protein clumps in the brain, often with visual hallucinations and Parkinson-like movement changes
- Frontotemporal dementia — damage to the front and side parts of the brain, often affecting behaviour or language first, and more common in younger people
- Mixed dementia — more than one cause at the same time, which is very common
- Other causes or look-alikes — such as depression, thyroid problems, vitamin deficiencies, infections, head injury or side effects of medicines
Risk factors
- Getting older — the biggest known risk factor
- A close family member with dementia, though most cases are not simply inherited
- Heart and blood vessel problems: high blood pressure, high cholesterol, diabetes, smoking and being inactive
- Hearing loss that is not treated, and untreated poor eyesight
- Depression and long-term stress
- Being socially isolated or having little mental stimulation
- Heavy alcohol use and repeated head injuries
- Some rare genetic conditions that run strongly in families
When to see a doctor
See a doctor urgently if:
- A sudden change in confusion or behaviour over hours or a couple of days
- A fall with a head injury, or any suspected stroke symptoms
- A person with dementia who is missing, or who has become unsafe at home
- Not eating or drinking, or signs of infection such as fever or a new cough together with worse confusion
Book a routine appointment if:
- You keep forgetting things that matter and it is affecting work, money, cooking or relationships
- Family or friends have noticed changes and are worried, even if you feel fine
- You get lost on a familiar route, or struggle with words or everyday tasks
- There has been a change in mood, personality or behaviour that is not like the person you know
- You are caring for someone and feel unsure what to do next
Diagnosis
Your GP is usually the first step. They will ask about the changes you have noticed, when they started and how they affect daily life. They will also talk to someone who knows you well if you are happy for them to. The GP will check for other causes — such as infections, thyroid problems, low vitamin levels, depression or medicine side effects — and may refer you to a memory clinic. A memory clinic is a specialist team that does a fuller assessment. Getting a diagnosis can take a few weeks to a few months, and a dementia information service can help you prepare and understand each stage.
Tests that may be done
- A conversation about your symptoms, your health history and your day-to-day life
- Short pen-and-paper thinking and memory tests, done gently and repeated over time
- Blood tests to rule out thyroid, vitamin and other treatable problems
- A review of all your medicines, including ones bought over the counter
- A brain scan, such as a CT or MRI, to look for strokes, shrinkage or other causes
- Sometimes more detailed thinking tests with a specialist, or a scan that looks at brain activity
- Questions for a family member or friend about changes they have noticed
What to expect at your appointment
The assessment is not a single test — it is a jigsaw of information put together over time. You can bring someone with you for support, and you can ask for extra time or a quiet room if that helps. Write down your questions beforehand, because it is easy to forget them on the day. After the assessment, the team should explain what they found, what it means, and what happens next. If you feel unsure, it is fine to ask for the explanation again or to contact a dementia information service afterwards.
Treatment
There is no cure for most types of dementia yet, but there is a great deal that can help. Treatment means supporting memory and thinking, keeping the person safe and well, treating other health problems, and looking after the carer too. The right plan is different for everyone, and a dementia information service can help you build one that fits your life.
Self-care at home
- Keep a calm, steady routine and put important things — keys, glasses, medicines, wallet — in the same place every time
- Use reminders: a large calendar, sticky notes, a pill organiser, phone alarms or a whiteboard by the door
- Stay social and keep up activities you enjoy, even in a smaller or simpler form
- Ask for a hearing and eyesight check — treating these can make thinking and conversation noticeably easier
- Make the home safer: better lighting, grab rails, no loose rugs, and a plan for what to do if someone gets lost
- Plan ahead early for money, wills and future care, while decisions are easier to make together
- Accept help. Friends and family often want to help but do not know how — give them a specific job
Medical treatments
Doctors may offer medicines that can help with symptoms for some types of dementia, and these are started and monitored by a specialist. Other medicines may be used to treat low mood, anxiety or sleep problems, and it is important to review all medicines regularly because some can make confusion worse. Alongside medicines, treatment includes managing blood pressure, diabetes, cholesterol and heart health; treating infections and pain promptly; and offering talking therapies, cognitive stimulation and structured activities. Support for carers — including respite breaks, training and financial advice — is part of good treatment too. Your healthcare team will discuss what is suitable for you or the person you care for.
When is surgery considered?
Surgery is not a treatment for dementia itself. Some people with dementia may need an operation for another health problem, such as a hip replacement after a fall. In that case, the team will plan carefully, review medicines, and take extra steps to reduce confusion during and after the hospital stay.
Living with this condition
Many people live well with dementia for years, especially with the right support. The key is to adapt early and keep life as familiar and enjoyable as possible. Break tasks into small steps, do them at the best time of day, and allow extra time without rushing. Keep a simple routine, involve the person in decisions for as long as they can, and focus on what they can still do rather than what has been lost. Small changes to the home, the shopping list or the way you talk can make a big difference.
Lifestyle tips
- Stay physically active in whatever way suits you — walking, gardening, chair exercises or dancing
- Keep in touch with people. Regular short visits or phone calls beat one long, tiring event
- Keep the mind busy with things you enjoy: music, puzzles, reading, cooking, singing or reminiscing with photos
- Protect sleep with a regular bedtime and morning daylight, and limit long daytime naps
- Cut down or stop smoking and keep alcohol within low levels
- Plan for the future while it is easier: money, driving, work, and what you would want if you became less able to decide
Diet and exercise
A balanced diet and regular movement are good for the brain as well as the heart. Aim for plenty of vegetables and fruit, whole grains, beans, nuts, oily fish and olive oil, and go easy on salty, sugary and heavily processed foods. Drink water regularly through the day — thirst is often missed in older adults and even mild dehydration can worsen confusion. Build in movement you actually enjoy, such as a daily walk, and add simple strength and balance exercises a couple of times a week to help prevent falls. Ask your GP or a physiotherapist for safe ideas if you have other health conditions.
Mental health and emotional wellbeing
Being told you have dementia, or caring for someone who does, can bring shock, grief, anger, fear and exhaustion — all of these are normal. Many people also feel low or anxious, and carers often put their own needs last. Talking about it helps: with a friend, a GP, a counsellor or a support group. If you or someone you care for has thoughts of self-harm or suicide, contact your local emergency number or a crisis line in your country straight away — you deserve urgent help, and it is available.
Prevention
There is no guaranteed way to prevent dementia, and no single step that removes the risk. But research suggests that looking after your heart, hearing, sleep and social life can lower the chance of developing it, or delay it. The earlier these healthy habits start, the better — but it is never too late to make a difference.
Vaccines
There is no vaccine that prevents dementia. Staying up to date with the routine vaccinations recommended for your age and health is still good practice, because infections can make confusion worse and illness is harder to recover from. Ask your GP or pharmacist which vaccinations are right for you.
Screening programmes
There is no routine national screening test for dementia. Memory and thinking checks are done when there is a concern, not as a standard test for everyone. If you are worried about your memory or thinking, it is worth speaking to your GP rather than waiting — an early conversation gives you more options.
Complications
If left untreated
- Memory and thinking problems usually get worse over time, making everyday tasks harder
- Higher risk of falls, injuries and hospital stays
- Infections, especially chest and urine infections, which can cause sudden confusion
- Swallowing problems and poor appetite leading to weight loss
- Anxiety, low mood, agitation and disturbed sleep
- Money problems, scams and difficulty managing affairs
- Loneliness and isolation for the person and their carer
- Carer strain and burnout, which is common and treatable but often hidden
Long-term outlook
Dementia is a long-term condition, and it is honest to say that it usually changes over time. But many people live well for years after diagnosis, and some types progress slowly. Getting help early — with memory support, health checks, money and legal planning, and help for carers — makes a real difference to quality of life. Research into dementia is moving quickly, and support services are there to help you at every stage. You are not alone in this.
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Health guidance differs by country and region. This page is general education and may not match the guidelines, medicines, or practice where you live. Discuss your concerns with your own doctor or healthcare provider, and follow local guidance where it exists.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
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No health guideline or clinical chapter that names this exact topic is cited here. This page is for general education and information only. It is not a diagnosis, a treatment plan, or personal medical advice. Check with your own doctor and follow their advice. If symptoms are severe, sudden, or worrying, get medical care promptly, and call your local emergency number in an emergency. Ruqelo LLC is not responsible for medical or legal outcomes from decisions based on this information.
Last updated: October 23, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Guidance may differ by country or region. Confirm local recommendations with a qualified healthcare provider.