Key points
- Dementia is a persistent decline in memory and thinking that prevents a person from living independently.
- Most often the cause is Alzheimer's disease or vascular damage to the brain.
- The first signs: forgetfulness, difficulty with counting, disorientation and problems finding words.
- A neurologist begins the examination with a conversation and neuropsychological tests, then an MRI is prescribed.
- In case of sudden confusion of consciousness, aggression or refusal to eat, call an ambulance.
What is dementia
Dementia is an acquired persistent decline in memory and other mental abilities that interferes with a person's daily life. It most often develops in old age and is associated with changes in the brain.
What happens in the body
In dementia, the functioning of the nerve cells of the brain responsible for memory, speech, attention and the ability to plan one's actions is gradually disrupted. The cells lose connections with each other, and some of them eventually stop performing their functions. Because of this, it becomes difficult for a person to recall recent events, the names of acquaintances, the way to familiar places. Gradually, the ability to do calculations, use household appliances, and orient oneself in time deteriorates. Behaviour also changes: anxiety, suspiciousness, irritability appear, or, conversely, indifference to what is happening around. Relatives notice that a loved one repeats the same questions, loses things, forgets to turn off the stove. Such changes do not go away on their own and increase over time, so it is important to discuss them with a doctor as early as possible.
What causes it to develop
- Alzheimer's disease: the most common neurodegenerative disease, in which brain cells gradually break down and memory and thinking steadily deteriorate.
- Vascular lesions of the brain: impaired blood supply to areas of the brain, including after a stroke, deprives nerve cells of nutrition and leads to persistent impairments.
- Severe traumatic brain injuries: a past head injury can trigger changes that, after some time, manifest as a decline in memory and attention.
- Chronic alcohol abuse: prolonged exposure of the nervous system to toxic substances gradually destroys brain cells and worsens mental abilities.
- Vitamin deficiency and hormonal disorders: a lack of certain vitamins and thyroid malfunction produce similar symptoms, which may ease after correction.
- Side effects of medicines: some medicines taken can cause confusion and worsening of memory, so all medicines being taken should be reported to the doctor.
Who faces this more often
A persistent decline in memory and thinking is more common in elderly people, and with each decade of life the likelihood of such a condition increases. The majority of cases are neurodegenerative and vascular changes, as well as their combination in one person. Women live longer than men, so among them the proportion of people with such impairments is higher. The risk is influenced by past strokes, head injuries, prolonged alcohol abuse and uncompensated hormonal disorders. Heredity and general health also matter: diseases of the heart and blood vessels worsen the nutrition of the brain. It has been noted that in people with a low level of education and rare mental activity, the signs appear earlier and more noticeably. Therefore, relatives should pay close attention to changes in the behaviour of a loved one and not postpone a visit to the doctor to find out the causes.
What symptoms occur?
Dementia manifests as a gradual deterioration of memory and a decline in the ability to plan, count and orient oneself. Relatives notice the changes earlier than the person themselves, so it is important to understand which signs indicate the need for a doctor's visit.
How it is noticed at the very beginning
Forgetfulness about recent events becomes the first noticeable sign, when a person asks the same thing again several times during the day. Difficulties with planning and counting show up as confusion when paying for purchases or counting change in a shop. Disorientation in time and place is expressed in the fact that a person forgets the way to a familiar place or confuses the day of the week. Problems with finding words are noticeable in conversation, when the usual names of objects drop out of speech. Changes in character and behaviour manifest as irritability, suspiciousness or unexpected apathy towards former interests. Difficulties with usual household tasks arise when cooking, cleaning or paying bills, which previously caused no trouble. Such changes are often put down to fatigue or age, so if they persist it is worth booking a routine appointment with a neurologist or psychiatrist.
Signs that occur most often
- Forgetfulness about recent events: a person loses things, asks again and does not remember recent conversations, which interferes with everyday tasks.
- Difficulties with planning and counting: confusion when paying for purchases and counting change complicates household calculations and requires outside help.
- Disorientation in time and place: a person forgets the way and confuses the time, because of which they may end up in an unfamiliar place without a landmark.
- Problems with finding words: the usual names of objects drop out of speech, conversation becomes difficult and requires effort.
- Changes in character and behaviour: irritability, suspiciousness, apathy or anxiety appear, which changes relationships with loved ones.
- Difficulties with usual household tasks: cooking, cleaning and paying bills become harder, and in the later stages help with self-care is needed.
When to seek urgent help
Examinations and tests
Examination for dementia begins with a conversation and tests, not with machines. The task is to understand how long ago and how quickly memory, speech and everyday skills have changed.
How the examination begins
The examination begins with a conversation between the doctor and the patient and their loved ones, who notice changes in behaviour and daily life better. The doctor collects complaints and asks relatives about when the first oddities appeared and how quickly they increased. Then he assesses memory, attention, speech and everyday skills using tests, comparing the results with the age norm. Such testing shows which functions are affected more severely and which remain relatively well preserved. Separately, it is clarified how the person copes with household matters: shopping, paying bills, finding the way to a familiar place. The answers of loved ones help to distinguish forgetfulness from the loss of a skill that was previously easy. Without this conversation, further steps lose their meaning, so the appointment should be planned together with the person who sees the patient every day.
What is prescribed and what it shows
What is worth preparing for the appointment
- Discharge summaries: take medical documents from previous years, they show how the condition changed and what has already been checked.
- List of complaints: write down what changes you noticed and when they began, so that the doctor can assess the speed of development.
- Observations of loved ones: ask a relative to come to the appointment and describe the everyday difficulties that the patient themselves may not notice.
- Previous scans: bring the results of previous MRI or CT scans, if there were any, for comparison with the new data.
- List of medications taken: make a list of what the person takes regularly, including over-the-counter remedies, this affects the interpretation of the tests.
- Questions for the doctor: formulate in advance what you want to clarify, so the appointment will be more organised and you will not forget anything.
Which doctor should I see?
If dementia is suspected, it is important to choose a doctor who manages the condition over the long term and assesses it over time. Below — who deals with this condition, what care consists of, and what depends on the patient themselves.
Which specialist manages this condition
Dementia is managed by a neurologist, and when behavioural and mood changes are pronounced, a psychiatrist is involved. The neurologist assesses memory, speech, attention and the ability to plan everyday tasks. The psychiatrist helps when anxiety, suspiciousness, irritability or sleep disturbances appear. If there is no specialist nearby, start with a physician or a general practitioner at your place of residence. Such a doctor will assess the general condition, rule out other causes of memory deterioration and refer you to the right specialist. Being seen by two specialists does not duplicate each other, but covers different aspects of the condition. Write down in advance how behaviour has changed and what has become harder to do around the house. Take to the appointment a list of all medications being taken, including those the person buys themselves.
What treatment consists of
- Selection of therapy by the doctor: the specialist takes into account the cause of the condition and the stage, so care is always selected individually for the specific person.
- Follow-up with a neurologist and psychiatrist: regular visits allow changes to be noticed and care to be adjusted in time, rather than acting blindly.
- Cognitive training and physical activity: feasible mental tasks and movement support preserved functions and help maintain everyday skills for longer.
- Help from a psychologist and training relatives in caregiving: loved ones receive clear guidance on how to talk and act in difficult situations without breakdowns and conflicts.
- Creating a safe and understandable home environment: simple prompts and order in the home reduce the risk of confusion, falls and accidental mistakes in habitual tasks.
What depends on the patient themselves
Regularity of follow-up is the part of care that largely rests on the person themselves and their loved ones. Missed visits to the neurologist and psychiatrist lead to changes being noticed late, when it is harder to select care. Keep a simple diary: note sleep, appetite, mood and episodes of confusion, so that there is a clear picture at the appointment. Try to maintain habitual tasks — cleaning, shopping, conversations with loved ones, as long as they are feasible and safe. It is useful for relatives to agree in advance who accompanies the person to the appointment and who helps at home. Speak openly to the doctor about behavioural disturbances, even if they seem insignificant. A calm daily routine and clear household rules noticeably make life easier for the whole family. Do not postpone the visit if new difficulties appear in habitual actions.
What helps prevent an exacerbation?
Everyday habits and regular health monitoring help reduce the risk of dementia worsening. Below is what exactly depends on the person themselves and why it matters.
What to change in habits
Regular physical activity supports the work of blood vessels and the brain, so walks and feasible exercise are important every day. Mental training — reading, counting, solving crosswords, learning something new — makes the brain work and noticeably supports memory. Live communication with loved ones reduces the risk of isolation, which often accelerates deterioration. Proper sleep lets the brain recover, and a lack of it and snoring may indicate apnoea, which requires separate attention. Giving up alcohol and smoking removes factors that additionally harm blood vessels and nerve cells. Monitoring blood pressure, sugar and cholesterol helps prevent spikes that imperceptibly worsen well-being. The earlier a person restructures these habits, the greater the chance of preserving clarity for longer, so it is worth starting with one small change.
What should be kept under control
- Blood pressure: it is measured regularly, because a persistent increase imperceptibly harms the brain's blood vessels and worsens memory.
- Sugar level: it is checked as prescribed by a doctor, because fluctuations in glucose affect the functioning of the nervous system.
- Cholesterol: this indicator is monitored through tests, since deposits in the blood vessels disrupt the brain's nutrition.
- Sleep and breathing at night: snoring and pauses in breathing should be noticed and discussed with a doctor, since apnoea interferes with the brain's rest.
- Mood and communication: isolation and low mood are important to track, they often go hand in hand with deterioration.
- Observation diary: short notes about well-being help the doctor see changes and adjust care in time.
How often to see a doctor
Regular visits to the doctor are needed even when a person feels well, because many changes accumulate imperceptibly. The doctor assesses memory, attention and everyday skills, comparing them with previous observations. They check blood pressure, sugar and cholesterol, and also ask about sleep, appetite and mood. Relatives can write down in advance what has changed in behaviour — such notes help assess the picture more accurately. If new difficulties in daily life appear, the visit is not postponed, but they are discussed at the nearest appointment. Between visits it is important to continue activity and monitoring, otherwise what has been achieved is easily lost. Such calm and constant monitoring helps notice changes in time and maintain quality of life for longer.
What is worth remembering
Dementia changes not only memory, but also the entire daily life of the family, so it is important to understand in advance what to prepare for and what to rely on in decisions. Below are the main conclusions that help to look at the situation calmly and without unnecessary mistakes.
Main conclusions
Dementia is a condition in which a person gradually loses the ability to cope with everyday tasks, and it is important for loved ones to accept this as a long-term process, not as a single episode. Noticeable changes affect not only memory, but also speech, orientation, behaviour and the ability to care for oneself. Because of this, relatives often take everything upon themselves and postpone a visit to a specialist, explaining what is happening by age or fatigue. Meanwhile, seeking help early gives more time for examination and for organising life more safely. Dementia does not mean that a person immediately stops recognising loved ones or needs constant supervision. Much depends on how quickly the family establishes daily routines, a schedule and distributes the burden among themselves. Do not postpone the conversation with a doctor and do not remain alone with this situation.
