Dementia vs. Alzheimer’s Disease: The Unwanted Pair of Conditions

When talking about forgetfulness, many people think of “dementia” or “Alzheimer’s disease” and mistakenly believe they are the same thing. In reality, these two conditions are different. Dementia is a broad term used to describe a progressive decline in brain function that affects daily life. Therefore, dementia can result from many factors, such as abnormalities in the brain’s blood vessels. However, we would not call symptoms from vascular issues Alzheimer’s disease. Alzheimer’s disease is a specific disease under the umbrella of dementia, directly affecting memory. In summary, they have different causes, but people often use the terms interchangeably.

Getting to Know “Dementia”

Dementia is a syndrome caused by various brain disorders, leading to a continuous decline in cognitive and memory abilities that impacts daily living. This impairment often affects thinking, memory, language, problem-solving, and decision-making abilities, making it difficult for patients to perform daily routines as they used to.

What are the symptoms?

The symptoms of dementia vary depending on the cause and the area of the brain affected, but common general symptoms include:

• Memory loss, especially short-term memory, forgetting recent events.
• Language problems, such as difficulty speaking, finding words, or understanding conversations.
• Disorientation to time and place, getting lost in familiar places, not remembering the day or time.
• Problems with planning and problem-solving, being unable to make simple decisions or complete familiar tasks.
• Changes in mood and behavior, such as irritability, depression, anxiety, or personality changes.

What are the causes?

Dementia is not caused by a single factor but is a condition resulting from damage to brain cells from various causes. Common causes include:

• Vascular disease: A common cause resulting from insufficient blood supply to the brain, blockages, or rupture of blood vessels in the brain, leading to oxygen deprivation and brain cell death.
• Parkinson’s disease: Patients in the later stages of the disease often have associated dementia.
• Vitamin deficiencies: Chronic vitamin B12 deficiency can affect brain function, causing dementia-like symptoms.
• Certain infections: Infections that affect the brain or chronic brain inflammation, such as HIV, can lead to dementia.

Other causes include dementia from repeated head injuries, hypothyroidism, or side effects from certain medications.

Getting to Know “Alzheimer’s Disease”

Alzheimer’s disease is a neurological disorder that causes brain cells to die and the brain to shrink. It is the most common cause of dementia, accounting for about 80% of all dementia patients.

What are the symptoms?

The symptoms of Alzheimer’s disease usually start slowly and gradually worsen over time. Common symptoms include:

• • Short-term memory loss, forgetting newly learned information, recent events, or asking repetitive questions.
  • Difficulty in planning or solving problems, such as managing finances, planning meals, or following recipes.
  • Confusion about time or place, forgetting dates, months, or seasons, getting lost in familiar places.

– Problems with communication and language, difficulty speaking or writing, unable to find the right words.
– Changes in mood and personality, may become depressed, socially withdrawn, paranoid, or aggressive.

What are the causes?

The exact cause of Alzheimer’s disease is still unknown but is believed to be a combination of genetic factors along with environmental and lifestyle factors. However, the hallmark pathology of Alzheimer’s disease is the accumulation of abnormal proteins in the brain:

• Beta-amyloid plaques: These are clumps of Beta-amyloid protein that accumulate between neurons in the brain, disrupting cell-to-cell communication.
• Tau tangles: These are Tau proteins that change shape and clump together inside neurons, interfering with the nutrient transport system within the cell, leading to brain cell death.

Key Difference Between Dementia vs. Alzheimer’s

Dementia is an umbrella term for a group of symptoms affecting cognitive abilities, while Alzheimer’s disease is the most common cause of dementia. The key difference is:

• Dementia has varying prominent symptoms depending on the cause. For example, if caused by vascular disease, the main symptoms will be problems with decision-making or abnormal movements. If caused by Parkinson’s disease, the main symptoms will be movement problems and various personality changes.
• Alzheimer’s typically starts with short-term memory problems as the primary issue. Patients first forget recent events, and their memory, thinking, and behavior gradually worsen.

In summary, Alzheimer’s is a type of dementia, but not all types of dementia are Alzheimer’s disease.

Treatment and Care for Dementia and Alzheimer’s

Treatment and care for dementia and Alzheimer’s disease focus on managing symptoms, slowing the progression of the disease, and improving the quality of life for patients and caregivers.

Dementia

Since dementia has many causes, treatment depends on the underlying cause. In some cases, if caused by a treatable condition like vitamin deficiency or hypothyroidism, treatment may improve or reverse the symptoms. For types that cannot be cured, care focuses on supportive measures, rehabilitating remaining abilities, and managing behavioral problems.

Alzheimer’s Disease

Currently, there is no cure for Alzheimer’s disease, but some medications can help temporarily slow the disease’s progression and manage memory and thinking problems. Besides medication, supportive care is another way to care for Alzheimer’s patients:

• Non-drug therapies: such as activity therapy, music therapy, art therapy, or exercise, to help maintain daily living skills and stimulate brain function.
• Environmental adjustments: making the environment safe and conducive to the patient’s living to reduce confusion and accidents.
• Physical health care: controlling underlying conditions such as high blood pressure and diabetes, which are risk factors.
• Medical technology: such as brain scans to see changes in the brain, magnetic brain stimulation to stimulate nerve cell function, and blood tests for biomarkers, which aid in more accurate diagnosis and monitoring of treatment. These technologies help doctors plan effective, individualized treatment and care.

Assess Your Alzheimer’s Risk at Synphaet Theparak

The most common cause of dementia is Alzheimer’s disease, which results from the degeneration of brain cells and the accumulation of abnormal proteins. Patients gradually lose their memory, thinking abilities, and ability to perform daily activities, eventually becoming completely dependent on others. Therefore, observing the early signs of dementia or Alzheimer’s and seeking early evaluation from a specialist is crucial. If you or a family member begins to show unusual symptoms related to memory, thinking, or unexplained behaviors, an assessment and diagnosis by a neurologist can help determine the true cause and plan appropriate care or treatment for each individual, to slow the disease’s progression and maintain the best possible quality of life for the patient.