Ten Signs of Cognitive Impairment and Prevention Strategies

Cognitive Impairment vs. Normal Aging: What is the Difference? We will help you identify early symptoms through the "Ten Warning Signs," allowing for early response and treatment to minimize the risk of brain decline as much as possible. This guide will help you understand and assess the impact of cognitive impairment and provide tips for brain health. The following content will be introduced:

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• Introduction to Cognitive Impairment: The impact of age, high-risk groups, and lifestyle habits in a changing brain to help you distinguish between cognitive impairment and normal aging, while providing information on disease prevention.

• Diagnosis and Self-Testing of Cognitive Impairment: Briefly introducing the diagnostic process, analyzing the influence of chronic diseases and lifestyle habits, and providing simple self-tests. This is not for formal diagnosis; please consult a professional if needed.

• Intervention Methods for Cognitive Impairment: In addition to drug intervention, implementing scientific healthcare solutions is no exception; one can generally find convenient and safe ways to prevent memory decline even with a busy life. The professional formula NerveReform® can effectively enhance the connection between synapses, ensuring clear and smooth transmission of brain messages. Click here to learn more.

1. Prevention of memory loss: Is it dementia or just aging?

Have you ever tried remembering something one second and forgetting it the next? How do you know if you are just being forgetful or have dementia?

Is dementia just forgetfulness?

Many people generally believe that dementia is just a term to describe memory decline or forgetfulness and is a normal phenomenon of aging. In fact, this phenomenon is easily ignored until it is discovered during advanced and irreversible stages. Dementia is a disease that gradually erodes cognitive functions over time.

Is dementia just a disease?

Dementia is not just one specific disease, but an umbrella term for different diseases with multiple clinical manifestations that affect memory, thinking, emotions, behavior, and daily activity capabilities. The hallmark of dementia is a progressive decline in cognitive function. It is important to distinguish dementia from the normal aging process; while some forgetfulness is common as we get older, dementia is a medical condition that causes memory functions to fail over time. Many people view dementia as a natural phenomenon of aging and dismiss it as a disease, but in reality, this is a pathological state that requires medical attention and intervention.

The key to recognizing dementia

We must recognize the impact of this disease as early as possible, pre-emptively plan for mitigation accordingly, and manage symptoms at the earliest opportunity. Early diagnosis and management can delay the worsening of the condition, maintain the patient's quality of life, and reduce the burden on caregivers. Delaying diagnosis can mean missing the optimal window for treatment, potentially leading to a faster progression of symptoms. To help you better understand dementia and cognitive impairment, including disease screening and symptoms, our research team offers professional information in this article. We also provide suggestions for caregivers of patients with cognitive impairment, hoping to offer comprehensive support.

2. Dementia is divided into different types and characteristics

Dementia is the most prevalent among neurodegenerative diseases. According to the data from the World Health Organization, approximately 57 million people worldwide suffer from cognitive impairment in 2021. Types of dementia include:

1. Alzheimer's Disease: This is the most common type of cognitive impairment, accounting for about 70% of all cases. Typical characteristics of Alzheimer's are the appearance of β-amyloid plaques and Tau neurofibrillary tangles in the brain, leading to nerve cell damage and death.

2. Vascular Dementia: The second most prevalent, accounting for about 17-30% of dementia cases. This disease originates from strokes or cerebral vascular disease leading to insufficient blood and oxygen supply to the brain, inflammation, and brain cell damage. Hypoxic cell damage and death can lead to problems with coordination.

3. Other types:

   • Lewy Body Dementia: Unstable attention, visual hallucinations, and motor symptoms similar to Parkinson's disease.

   • Frontotemporal Dementia: Rarer, with an onset age usually between 45 and 65 years old, characterized by abnormal changes in Tau. This disease mainly affects behavior, personality, and language ability.

The Hong Kong Department of Health reported that 1 in 10 people over the age of 60 suffer from dementia, and for those 85 or older, it is 1 in 3, with many still undiagnosed. Research shows that with a rapidly aging population, it is expected that by 2039, more than 300,000 people will suffer from dementia.

3. Causes and Risk Factors of Cognitive Impairment

Do you belong to a high-risk group for dementia?

The causes of dementia and cognitive impairment stem from both genetic and environmental factors. Among patients with dementia, the proportion of women is higher than men, with the average age of onset around 60 for men and 70 for women. Generally, there are ten primary risk factors for cognitive impairment:

1. Age: Increasing age is the primary risk factor. According to official Hong Kong data, the prevalence rate for those over 65 is 5-8%, while for those over 85, it is about 20-30%.

2. Genetic Factors: Certain types of dementia, such as Alzheimer's, have a higher risk of being inherited.

3. Chronic Diseases: Individuals with high blood pressure, diabetes, obesity, and cardiovascular disease with high cholesterol may face a higher risk of developing vascular dementia. Controlling chronic diseases and unhealthy body states can significantly reduce this risk.

4. Lifestyle Habits: Insufficient exercise, chronic sleep deprivation, smoking, excessive drinking, an unbalanced diet, and other unhealthy habits can increase the risk of chronic inflammation and contribute to the development of the disease.

5. Mental Illness: Suffering from depression or anxiety can increase stress hormones (cortisol), thereby elevating the risk of dementia.

6. Social Isolation: Long-term lack of social interaction can lead to reduced brain activity. When the brain is less stimulated, overall cognitive function can degenerate more easily.

7. Hearing or Vision Impairment: Impaired hearing or vision can increase cognitive load. When sensory information is blurred, the brain needs to expend more energy on analysis and identification, which can then affect memory.

8. Lower Education Level: Generally, people with lower education levels tend to have less cognitive reserve and lower cognitive demand. Our cognitive reserve is the brain's ability to adapt to aging or pathological damage. People with lower education levels are also more likely to have unhealthy lifestyle habits, further increasing the risk of dementia.

9. Head Trauma: Head trauma, such as concussions or strong impacts, can trigger nerve inflammation and the accumulation of abnormal proteins, leading to impaired memory and cognitive functions.

10. Environmental Pollution: Long-term exposure to pollutants (especially airborne suspended particles, nitrogen dioxide, and nitrogen oxides) can cause nerve inflammation and oxidative stress, leading to nerve damage and cognitive decline.

Symptom development in different stages

Stages of Dementia

Dementia is typically divided into three stages; the symptoms and needs at each stage are different. If you wish to understand your cognitive status and determine whether it's normal aging or a developing condition, it is recommended to undergo a dementia screening test as soon as possible:

Initial Stage

Symptoms: Mild memory impairment, particularly for recent events (such as forgetting what was eaten yesterday). Individuals may find it difficult to handle complex tasks (like arranging furniture), and low mood or anxiety might appear. Despite these challenges, they are generally still able to manage self-care.

Example: Forgetting the details of a meeting very quickly after it ended; financial or data-related work taking more time than before; being aware of one's own memory decline and consequently feeling frustrated and anxious.

Middle Stage

Symptoms: Memory decline becomes more pronounced. Individuals may mistake relatives for friends, recognizing faces but forgetting names. They often experience confusion about time and place, requiring assistance from others for daily activities (such as using the toilet). Hallucinations and delusions may also occur. Personality changes and significant mood swings are common, potentially leading to aggression or verbal outbursts.

Example: Mistaking a family member for a domestic helper, often suspecting them of stealing money.

Late Stage

Symptoms: Complete loss of self-care ability, and require round-the-clock monitoring. Speech ability is severely limited, and there is little to no self-awareness. Swallowing difficulties and incontinence may occur, and individuals may even become bedridden long-term.

Example: The patient is unable to eat independently, requiring feeding through a nasogastric tube, exhibits minimal reaction to external stimuli, and spends most of the time sleeping in bed.

Diagnosis and Treatment: Comprehensive Assessment of Memory

If you or a family member are experiencing some of the ten major warning signs of cognitive impairment, various recommended diagnostic methods are outlined below. It's crucial to understand that cognitive impairment is not diagnosed by a single test but requires a comprehensive assessment by a healthcare professional. The main purpose of this assessment is to rule out other conditions with similar symptoms (such as depression, thyroid problems, nutrient deficiencies, etc.).

Diagnostic process:

1. Detailed medical history review: The doctor will interview the patient and family members about the onset of symptoms, their progression, and their impact on daily life.

2. Physical examination: This involves assessing the overall health status of the patient and checking the functions of the nervous system (such as reflexes).

3. Laboratory tests: Blood tests are used to check for thyroid function, Vitamin B12 levels, metabolic indicators, etc., to rule out other potential causes of cognitive impairment.

4. Cognitive assessment: Standardized assessments are that includes memory, language, attention, reaction, and other cognitive functions.

5. Brain imaging scans: Such as Magnetic Resonance Imaging (MRI) or Positron Emission Tomography (PET), to observe brain structure changes or abnormal protein deposition.

It is important to note that "dementia tests" available online are usually just preliminary screening tools based on self-perception or information from relatives. These tools can be biased and do not serve as a replacement for a professional diagnosis. Should there be any concerns about cognitive impairment, a comprehensive cognitive assessment conducted by a medical professional is highly recommended.

Introduction to Dementia Tests

The information below describes two commonly used preliminary screening tests. These tests are for reference only and are not to be used as a basis for diagnosis. If you feel the test results are unfavorable or you have any doubts, a comprehensive cognitive assessment from a medical professional is recommended. The following tests may detect problems related to the ten major warning signs of cognitive impairment and can also more accurately evaluate the status of the patient, facilitating the process of identifying symptoms.

1. Clock Drawing Test

   • Clock drawing is a method for rapid screening. This method can assess symptoms related to cognitive impairment, including dementia.

   • Operation steps:

     a. Give the test subject a piece of white paper and a pen.

     b. Ask the subject to "draw a clock, mark all the numbers, including the hands that indicate 11:10."

   • Scoring standards:

     • A circle with a closed line (clock face): 1 point (circle is complete, no deformation)

     • Correct number positions: 1 point (number order and positions are all correct)

     • Includes all numbers: 1 point (numbers are not repeated and none are missing)

     • Correct hand positions: 1 point (the standard is usually set at 11:10, long and short hands must be identifiable and point to the correct numbers)

   • Score level: Normal individuals can score more than 2 points; if it is 2 points or below, one may need to find a professional for a more detailed examination. (Standards may be affected by education level, vision or hearing difficulties, and motor function impairments).

2. Mini-Mental State Examination (MMSE) partial content

   MMSE is a cognitive screening tool that can test the following areas:

   • Orientation: Questions about time and place ("What day is today? What year, month, and date is today?" "Where are we now? Which country, city, hospital?")

   • Memory and Delayed Recall:  Requires remembering three unrelated words, asking the subject to repeat them, and then recalling these three words after 5 minutes.

   • Attention and Calculation: Calculating by continuously subtracting 7 from 100 (100-7=93, 93-7=86...), subtracting five times consecutively.

   • Language Ability and Execution Ability: Assessment includes naming common objects (such as watches, cups), executing actions according to 3 instructions (such as picking up A4 paper, folding it, and putting it on the ground), accurately repeating sentences, reading, and understanding instructions.

   • Visual-Spatial Ability: Drawing simple patterns according to instructions (such as two overlapping pentagons).

     
     

Disclaimer: The above tests are preliminary screening tools for cognitive function and cannot replace professional diagnosis. Cognitive impairment can be caused by many reasons; only after a comprehensive assessment by professional medical personnel can cognitive impairment be diagnosed.

Goals and Methods for Treating Cognitive Impairment

People who have taken the dementia assessment and were diagnosed with cognitive impairment often seek treatments. However, currently, there is no cure for cognitive impairment; one can only use drugs, healthcare products, or through lifestyle adjustments to delay the worsening of the condition and improve the quality of life.

Treatment goals:

• Delay cognitive function decline

• Manage behavioral and psychological symptoms

• Maintain daily functions and independence

• Improve the quality of life for patients and caregivers

• Provide comprehensive support and education

Treatment methods:

• Drug treatment:

  • Cholinesterase inhibitors

  • NMDA receptor antagonists

  • Immunotherapy (such as monoclonal antibodies)

  • Please note: Drug treatment must be prescribed and monitored for dosage by a specialist doctor; do not use drugs on your own.

• Non-drug intervention methods/Cognitive training:

  • Brain stimulation training: Stimulating thinking, memory, and social abilities through social group activities. Group activities include puzzles, word and number games, etc.

  • Reality orientation training: Systematically repeating daily real information (such as time, place, and people) to help patients maintain existing cognition.

  • Technically assisted training: Using computers for cognitive training, strengthening memory, logic, and reaction.

  • Reminiscence therapy: Looking at old photos or asking patients about their stories from a long time ago, recalling feelings at that time, and improving mood.

  • Music therapy: Using music to improve mood and reduce mood swings.

  • Art therapy: Expressing emotions through creation, reducing anxiety, and enhancing sensory abilities.

  • Exercise: Moderate exercise helps maintain overall body function, can increase brain-derived neurotrophic factor, and improve mood.

  • Nutritional supplements: Using supplement products made from natural medicinal herbs can delay cognitive decline or activate the activity between nerve cells (synapses). The NerveReform® brain health product developed by the top research team of NerveReform® can enhance the connection between synapses, increasing clarity in thinking and improving focus. This product integrates molecular neuroscience research technology and traditional Chinese medicine wisdom, suitable for those who wish to prevent cognitive decline and those who are in need of brain protection.

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Research indicates that a combination of pharmacological (drug) and non-pharmacological treatments results in the best outcomes for improving quality of life. The Hong Kong Hospital Authority now incorporates multiple non-pharmocological methods into dementia treatment.

Caregiver Guide: Lifestyle Adjustment Strategies for Dementia Patients

Caregiver tips

Caring for cognitive impairment patients is full of daily challenges. The following suggestions can help caregivers:

1. Use simple communication methods:

   • Use short sentences to express yourself.

   • For example: Ask one question or give one instruction.

   • Treat the patient patiently and give them sufficient time to respond to you.

2. Maintain routines every day:

   • Maintain fixed daily routines.

   • Simplify the environment and reduce confusion (such as clutter).

   • Confirm the location of important items.

3. Observe the patient's behavior changes:

   • Understand the needs behind behaviors (such as pain, discomfort, confusion).

   • Divert the patient's attention rather than confronting them.

   • Stay calm and avoid scolding the patient.

4. Self-care:

   • Actively seek support from family, friends, and neighbors.

   • Participate in caregiver support groups (such as social worker associations).

   • Rest appropriately and maintain your own health and social life.

5. Seek professional support:

   • Inquire about and arrange community resources such as day care centers and respite services.

   • Consult professional medical personnel regarding symptom management.

   • If needed, inquire about legal and financial assistance.

Prevention methods

Although cognitive impairment cannot be completely prevented, the following lifestyle habits and eating habits can help reduce the risk. Maintaining cognitive health requires a multifaceted approach, incorporating various strategies to help yourself and those around you:

1. Challenge the brain:

   • Recommended cognitive function training: Sudoku, puzzles, learning new skills (learning instruments, new languages).

   • Read more, write, play strategy games.

   • Lifelong learning, frequently challenging the brain.

2. Balanced diet, ensuring balanced nutrition:

   • Mediterranean diet pattern: Rich in vegetables and fruits, whole grains, fish containing high fats (tuna, salmon, mackerel, etc.), olive oil, nuts (almonds, walnuts, etc.).

   • Ensure sufficient Vitamin B12, D, and Omega-3 fatty acids.

   • Limit saturated fats and processed foods.

   • Healthcare products as a brain health supplement (e.g., ReFine®).

3. Strictly manage chronic diseases:

   • Control blood pressure, blood sugar, and cholesterol.

   • Regular health checkups.

   • If there are early symptoms of chronic diseases, seek medical attention as soon as possible.

   • Follow medication instructions.

4. Cultivate good living habits:

   • Regular exercise: At least 150 minutes of moderate-intensity exercise per week, such as aerobic exercise (e.g., slow running, rope skipping, swimming, cycling, etc.).

   • Can be combined with simple exercises, such as walking, Tai Chi, yoga, water sports, etc.

   • Sufficient sleep (7-8 hours).

   • Avoid smoking, limit/quit drinking.

5. Build an active social circle:

   • Maintain friend and family connections.

   • Participate in community activities or volunteer groups.

   • Cultivate interests and hobbies, maintaining a sense of meaning in life.

The Hong Kong Department of Health promotes the "Brain Friends" project, encouraging citizens to reduce the risk of cognitive impairment through healthy living. Research shows that integrating these preventive measures can reduce the risk of cognitive impairment by about one-third.

Summary

Cognitive impairment and dementia represent global health challenges. Today's society increasingly recognizes the significance of these conditions and seeks to understand their implications. Since there is currently no cure for this disease, prevention before symptoms emerge is paramount. It is recommended that individuals around fifty years old undergo regular blood tests and cognitive assessments to facilitate early detection and intervention.

The public should possess a basic understanding of the ten major warning signs of cognitive impairment and observe any changes in their own cognitive functions or those of their family members. Upon suspecting symptoms, it is crucial to seek professional help as soon as possible for proper diagnosis and interpretation. Professional dementia testing is a comprehensive assessment process that must be performed by medical professionals.

For diagnosed patients and their families, understanding the progression of the disease allows them to effectively utilize medical and community resources, combining pharmacological and non-pharmacological treatments. Most importantly, effective symptom management can significantly maintain their quality of life. Beyond the patients themselves, caregivers also require support and self-care to continue providing sustainable care.

In terms of disease prevention, while age and genetic factors are unchangeable, everyone should cultivate a healthy lifestyle before obvious symptoms appear. This proactive approach helps reduce the risk of the disease and establishes a protective foundation for brain health.

Finally, societal recognition and acceptance of cognitive impairment necessitate the establishment of a supportive and friendly environment, ensuring patients and their families feel understood and supported. When those around us exhibit the ten major warning signs of cognitive impairment, we should offer ample support, assist each other, and take action to prevent further deterioration and safeguard precious memories.

Disclaimer: The information provided in this article is for educational reference only and cannot replace professional medical advice, diagnosis, or treatment. If you or your family members show symptoms of cognitive function decline, please be sure to consult qualified medical professionals. Early diagnosis and appropriate treatment are crucial for managing cognitive impairment.

References

Berg-Weger M, Stewart DB. Non-Pharmacologic Interventions for Persons with Dementia. Mo Med. 2017 Mar-Apr;114:116-119.

Schramm U, Berger G, Müller R, Kratzsch T, Peters J, Frölich L. Psychometric properties of Clock Drawing Test and MMSE or Short Performance Test (SKT) in dementia screening in a memory clinic population. Int J Geriatr Psychiatry. 2002;17:254-60.