Changes in behaviour tend to start from the middle stage of dementia. These changes are common and individual symptoms may come and go.
Dr Rosa Sancho, Head of Research of Alzheimer's Research UK, said: “For most people with dementia, symptoms get steadily worse over the course of several years but there are things that can also impact memory and thinking ability in the short term.
It is not unusual for people with Alzheimer's disease to have “good days” and “bad days.” For example, a person with early-stage AD may not show symptoms one day, the next he or she may have trouble remembering names or finding the milk in the refrigerator.
The late stage of Alzheimer's disease may last from several weeks to several years. As the disease progresses, intensive, around-the-clock care is usually required.
Memory problems are typically one of the first signs of the disease. Decline in non-memory aspects of cognition, such as finding the right word, trouble understanding visual images and spatial relationships, and impaired reasoning or judgment, may also signal the early stages of Alzheimer's.
Most people with young-onset Alzheimer's develop symptoms of the disease when they are between 30 and 60 years old.
The Mini-Cog test.
A third test, known as the Mini-Cog, takes 2 to 4 minutes to administer and involves asking patients to recall three words after drawing a picture of a clock. If a patient shows no difficulties recalling the words, it is inferred that he or she does not have dementia.
You might be surprised to learn that some people are actually not aware that they have Alzheimer's. People with Alzheimer's, dementia, brain tumor, stroke, and other types of damage in the brain are cognitively impaired and because of that, might not believe anything is wrong with them.
Administration: The examiner reads a list of 5 words at a rate of one per second, giving the following instructions: “This is a memory test. I am going to read a list of words that you will have to remember now and later on. Listen carefully. When I am through, tell me as many words as you can remember.
other long-term health problems – dementia tends to progress more quickly if the person is living with other conditions, such as heart disease, diabetes or high blood pressure, particularly if these are not well-managed.
Late afternoon and early evening can be difficult for some people with Alzheimer's disease. They may experience sundowning—restlessness, agitation, irritability, or confusion that can begin or worsen as daylight begins to fade—often just when tired caregivers need a break.
It is quite common for a person with dementia, especially in the later stages, to spend a lot of their time sleeping – both during the day and night. This can sometimes be distressing for the person's family and friends, as they may worry that something is wrong.
Depression, nutritional deficiencies, side-effects from medications and emotional distress can all produce symptoms that can be mistaken as early signs of dementia, such as communication and memory difficulties and behavioural changes.
In the final stage of the disease, dementia symptoms are severe. Individuals lose the ability to respond to their environment, to carry on a conversation and, eventually, to control movement. They may still say words or phrases, but communicating pain becomes difficult.
The physical changes of late-stage dementia are partly why the person is likely to need much more support with daily living. At this stage they may: walk more slowly, with a shuffle and less steadily – eventually they may spend more time in a chair or in bed.
Receiving a life-changing dementia diagnosis doesn't strip a person of their humanity or personhood. People with dementia think about the same things that any human thinks about — emotions, relationships, daily life, tasks to accomplish, and more.
Most experts say that if the affected person asks you what's wrong with them, you should be honest. Knowing that the problem is a disease, not "insanity," is often a relief for the person affected. Telling someone who has not asked may be helpful, particularly if the person appears troubled about his or her condition.
The five-minute cognitive test (FCT) was designed to capture deficits in five domains of cognitive abilities, including episodic memory, language fluency, time orientation, visuospatial function, and executive function.
Background: The seven minute screen (7MS) is a compilation of the temporal orientation test, enhanced cued recall, clock drawing, and verbal fluency. It has been shown to be useful for detecting Alzheimer's disease in a population of patients with memory complaints.
The clock-drawing test is a quick way to screen for early dementia, including Alzheimer's disease. It involves drawing a clock on a piece of paper with numbers, clock hands, and a specific time. The inability to do so is a strong indication of mental decline.
Is Alzheimer's passed on by mother or father? Alzheimer's is not passed on by the mother more than the father, or vice versa. A mother or father may pass on an “Alzheimer's gene” or mutation that increases your risk. Even if both your parents pass on a risk gene, your Alzheimer's risk is higher, but not certain.
Alzheimer's disease progressively destroys brain cells over time, so during the early stages of dementia, many do recognize something is wrong, but not everyone is aware. They may know they are supposed to recognize you, but they can't.
Memory problems
Difficulties with memory are the most well-known first signs of dementia. For example, a person may not recall recent events or may keep losing items (such as keys and glasses) around the house. Memory loss is often the first and main symptom in early Alzheimer's disease.