Understanding Dementia, with Dr Soumit Singhai


To mark Dementia Awareness Week 2021, Dr Soumit Singhai shares his answers questions to the questions he is most frequently asked about the disease. Dr Singhai is Consultant Geriatrician and Physician, with specialist interest and expertise in the cognitive and neuropsychiatric problems related to dementia and also Parkinson’s disease.

What is the difference between normal forgetfulness with ageing, and memory problems in an older person that suggest an underlying medical disorder such as dementia?Memory Clinic at One Hatfield Hospital

For most people, occasional lapses in memory are a normal part of the ageing process, and not a warning sign of serious mental deterioration or the onset of dementia. 

The following examples of memory lapses are normal among older adults and generally are not considered warning signs of a more serious underlying medical disorder:

  • Occasionally forgetting where you left things you use regularly, such as glasses or keys.
  • Forgetting names of acquaintances or blocking one memory with a similar one, such as calling a grandson by your son’s name.
  • Occasionally forgetting an appointment or walking into a room and forgetting why you entered.

The key question is whether the memory loss affects the person’s ability to function and do the things they need to do as part of their everyday life.

So the primary difference between age-related memory loss and dementia is that with age related memory loss the memory lapses have little impact on one’s daily performance and ability and are therefore not disabling whereas the memory loss as part of dementia does affect the person’s daily life.


What is dementia?

The term ‘dementia’ describes a set of symptoms that may include memory loss and difficulties with thinking, problem-solving or language that they have become severe enough to affect a person’s normal day to day activities.

Dementia is caused by different diseases affecting the brain including Alzheimer’s disease which is the most common cause of dementia. Other types of dementia include Vascular Dementia and Dementia with Lewy Bodies.


What are the most commons symptoms of dementia?

A person with dementia will have what we term ‘cognitive symptoms’ which are to do with memory and thinking.

Some of the common symptoms are as follows :

  • Memory loss especially short term memory – for example difficulty remembering recent events, names, appointments and asking the same questions repeatedly.
  • Problems with planning or organising – for example difficulty performing familiar tasks.
    • People with dementia often find it hard to complete everyday tasks that are so familiar we usually do not think about how to do them.
    • A person with dementia may not know in what order to put clothes on or the steps for preparing a meal.
  • Problems with language – for example finding the right word for something.
  • Visuospatial skills – for example problems judging distances and seeing objects in three dimensions.
  • Problems with orientation – for example, losing track of the day or date, or becoming confused about where they are.
  • Poor or decreased judgement – for example people with dementia may dress inappropriately, wearing several layers of clothes on a warm day or very few on a cold day.
  • Problems with keeping track of things for example a person with dementia may find it difficult to follow a conversation or television programme.
  • Misplacing things – anyone can temporarily misplace his or her wallet or keys. A person with dementia may put things in unusual places such as an iron in the fridge or a wristwatch in the sugar bowl.
  • Changes in mood or behaviour – a person with dementia will also often have changes in their mood. For example, they may become frustrated or irritable, apathetic or withdrawn, anxious, easily upset or unusually sad.
  • Changes in personality – a person with dementia may seem different from his or her usual self for example they may become suspicious, irritable, depressed, apathetic or anxious and agitated especially in situations where memory problems are causing difficulties.

With some types of dementia, the person may see things that are not really there (visual hallucinations) or strongly believe things that are not true (delusions).

The different types of dementia tend to affect people differently, especially in the early stages.


When should you seek medical help for memory loss and are there any benefits in early diagnosis?

It is time to consult a specialist when memory lapses become frequent enough or sufficiently noticeable to concern you or a family member.

Early diagnosis is beneficial for the following reasons:

  • Identify and treat potentially reversible causes of memory loss e.g. depression, thyroid problems or certain vitamin deficiencies.
  • Provides the affected person and their family with an explanation for their symptoms which helps them to come to terms with things and enables them to be better equipped to cope with the disease progression.
  • Allows the person with dementia to prepare for the future and plan ahead e.g. to make decisions about their financial and legal affairs while they still have the capacity to do so.
  • Gives people with dementia a better chance to benefit from the available drug and non-drug therapies that may improve their cognition and enhance their quality of life and identifying the type of dementia (e.g. Alzheimer’s or vascular dementia) is particularly important in this regard.

If you are experiencing any of these symptoms or are concerned about a friend or relative, you can contact us here at One Hatfield Hospital for assessment in the memory clinic here.

Even if you’re not displaying all the necessary symptoms to indicate dementia, now may be a good time to take steps to prevent a small problem becoming a larger one.

At the memory clinic here at One Hatfield Hospital we can evaluate your symptoms assess risk factors, review and stop medication that can cause problems with cognition, eliminate reversible causes of memory loss, and help you obtain appropriate care including drug treatment and support.


Is there anything you can do to reduce the risk of developing Alzheimer’s?

Promising research shows that you can reduce your risk of Alzheimer’s and other dementias through a combination of simple but effective lifestyle changes.

By leading a brain-healthy lifestyle, you may be able to prevent the symptoms of Alzheimer’s disease and slow down, or even reverse, the process of deterioration.

There are six important factors for a brain-healthy lifestyle which are as follows:

  • Regular exercise stimulates the brain’s ability to maintain old connections, make new ones, and slow deterioration in those who have already started to develop cognitive problems.
  • Social engagement.
    • Staying socially engaged may even protect against Alzheimer’s disease and dementia in later life, so make developing and maintaining a strong network of friends a priority.
  • Healthy diet.
    • Eating a brain-healthy diet can help reduce inflammation, protect neurons, and promote better communication between brain cells.
    • A healthy diet in this regard would include cutting down on sugary foods and refined carbohydrates, avoiding trans fats in fast food, fried and packaged foods, eating more omega-3 fats and having more of a Mediterranean diet which means plenty of vegetables, beans, whole grains, fish and olive oil and limited processed food and eating more fruits and vegetables.
    • With regards to Vitamins and minerals – Folic acid, Vitamin B12, Vitamin D, magnesium and fish oil may help to preserve brain health.
  • Mental stimulation.
    • By continuing to learn new things and challenge your brain one can strengthen their cognitive skills and are less likely to develop Alzheimer’s disease and dementia, so the old adage “use it or lose it” clearly applies in this situation.
  • Quality sleep.
    • Getting quality sleep can flush out brain toxins and avoid the build-up of damaging plaques.
  • Stress management.
    • Chronic or persistent stress can take a heavy toll on the brain, leading to shrinkage in a key memory area, hampering nerve cell growth, and increasing the risk of Alzheimer’s disease and dementia, however simple stress management techniques can minimize its harmful effects.


Other tips to reduce the risk of Alzheimer’s are:

  • Stop smoking. Smoking is one of the most preventable risk factors for Alzheimer’s disease and dementia. When one stops smoking the brain benefits from improved circulation almost immediately.
  • Good control of blood pressure and cholesterol levels. Both high blood pressure and high total cholesterol are associated with an increased risk of Alzheimer’s disease and vascular dementia.
  • Watching one’s weight. A major study found that people who were overweight in midlife were twice as likely to develop Alzheimer’s down the line, and those who were obese had three times the risk. So losing weight if indicated can go a long way to protecting your brain.
  • Alcohol in moderation.  While there appear to be brain benefits in consuming red wine in moderation, heavy alcohol consumption can dramatically raise the risk of Alzheimer’s and accelerate brain


Call 01707 443 333 to book a consultation with Dr Soumit Singhai at One Hatfield Hospital. 


Dr Soumit Singhai