The harsh reality of how Alzheimer’s disease kills

Millions of people and their families worldwide suffer horribly from Alzheimer’s, a progressive neurological condition. It is a strong foe that offers no space for compromise and no release from its unrelenting hold.

The early symptoms of Alzheimer’s are frequently ignored, with slight forgetfulness mistaken for simple absentmindedness. But as time goes on, the disease’s sneaky character becomes apparent, tearing at the fundamental foundation of the sufferer.

Cognitive skills deteriorate, and the once-vigorous intellect becomes clouded. When communication breaks down, family members appear like strangers to people they hold dear.

The burden of memory loss is only one aspect of the destruction brought on by this tenacious foe.

This blog post will reveal the depressing truth about an obstinate opponent that saps the life force of countless people: Alzheimer’s disease. We’ll go deeply into the troubling reality, outlining the cunning ways in which this illness snatches away memories, personalities and ultimately entire lives.

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What is Alzheimer’s disease?

A fatal neurodegenerative condition that mostly affects the brain, Alzheimer’s disease, is slowly affecting memory, cognitive ability, and day-to-day functioning. With 60 to 80 percent of cases, it is the most prevalent dementia. 

It is crucial to examine this disease’s definition, prevalence and early warning symptoms to comprehend its effects fully. Beta-amyloid plaques and tau protein tangles are two aberrant protein deposits that accumulate in the brain due to Alzheimer’s disease [1]. 

These deposits obstruct regular brain cell communication, eventually resulting in brain cell death and reduced cognitive function. Although the precise etiology of Alzheimer’s disease is still unknown, genetic and environmental factors are thought to have a part.

Alzheimer’s illness is incredibly prevalent. Over 50 million individuals worldwide are presently suffering from dementia, with Alzheimer’s disease being the main cause, according to the latest estimates. This figure is anticipated to rise considerably as the world’s population ages, making Alzheimer’s a serious public health issue.

What are the early signs and symptoms of Alzheimer’s

For early intervention and better quality of life, it is essential to recognize the early indications of neurological conditions like Alzheimer’s disease. 

While individual symptoms may differ, the following are some typical warning signs:

  • Memory loss

Difficulty remembering recently learned information or important dates and events [2].

  • Cognitive decline

Challenges in problem-solving, concentration and decision-making.

  • Language problems

Having trouble following talks or finding the correct words.

  • Disorientation

Getting lost in familiar places or becoming confused about time and location.

  • Misplacing items

Frequently putting items in unusual or inappropriate places.

  • Changes in mood and behavior

Mood swings, apathy and social withdrawal.

What are the early signs and symptoms of Alzheimer’s
Photograph: halfpoint/Envato

Pathological processes in Alzheimer’s disease

Different degenerative processes that gradually interfere with brain function are the hallmarks of Alzheimer’s disease. 

The fundamental mechanisms causing cognitive deterioration in those with the condition must be understood to appreciate these processes fully.

Formation of amyloid plaques

The buildup of beta-amyloid plaques in the brain is one of the defining characteristics of Alzheimer’s disease. 

A protein fragment called beta-amyloid forms plaques between nerve cells by congregating there.

Over time, the inflammation these plaques cause and the disruption of cell-to-cell communication that they cause neurons to die.

Neurofibrillary tangles

The development of neurofibrillary tangles is a crucial pathogenic phase in Alzheimer’s disease. These tangles are abnormally twisted tau protein fibers that ordinarily aid in stabilizing the internal organization of nerve cells. 

But with Alzheimer’s, tau protein twists and tangles, preventing the movement of vital chemicals and nutrition inside the cells. This interferes with the connection and regular operation of brain cells.

Impaired neuronal communication

Communication between neurons is gradually hampered when amyloid plaques and neurofibrillary tangles build up. Damaged synapses, the junctions between nerve cells, prevent electrical and chemical impulses from being transmitted properly. 

This disturbance makes it difficult for the brain to comprehend information, which impairs cognition and causes memory loss.

Neurotransmitter imbalances

The levels of certain neurotransmitters, which are substances involved in signal transmission between neurons, are also impacted by Alzheimer’s disease. 

A considerable reduction in acetylcholine, a crucial neurotransmitter for memory and learning, is seen in Alzheimer’s patients. 

Changes in mood and behavior frequently seen in the condition may also be caused by an imbalance in other neurotransmitters, including serotonin and norepinephrine.

How Alzheimer’s disease progresses

It is essential for caregivers, medical experts, and Alzheimer’s patients to comprehend the disease’s course to foresee changes, plan for care and find the right support. 

The phases of Alzheimer’s disease, from moderate cognitive impairment to severe Alzheimer’s, will be discussed.

Stage 1: Mild Cognitive Impairment (MCI)

The early stages of Alzheimer’s disease are frequently referred to as MCI. 

At this stage, people may detect slight changes in their memory, thinking or language abilities in themselves and their immediate relatives [3]. 

Although these modifications don’t significantly affect day-to-day activities, they might result from natural aging or other circumstances. 

It’s crucial to remember that not everyone with MCI develops Alzheimer’s disease.

Stage 2: Early-stage Alzheimer’s

The symptoms of Alzheimer’s disease worsen with time and start to affect everyday living.  People may struggle in the early stages with memory, focus, and problem-solving. 

They can have trouble remembering recent talks or finding the correct phrases.  Commonplace things like handling funds or planning schedules may become difficult. 

Despite these issues, most people can still operate independently with minor help.

Stage 3: Moderate-stage Alzheimer’s

The intermediate stage, which often lasts the longest, is marked by a more severe deterioration in cognitive function.  As memory loss worsens, people may struggle to identify familiar persons or locations. 

Language and communication problems worsen, making people more irritable and agitated. 

Sundowning (greater disorientation in the late afternoon or evening) and other behavioral abnormalities, such as wandering and restlessness, may also manifest. During this phase, assistance with daily tasks like getting dressed, bathing, and preparing meals becomes important.

Stage 4: Severe-stage Alzheimer’s

Individuals with Alzheimer’s disease suffer from severe cognitive decline and functional disability.  People with acute memory loss may find it difficult to recall intimate details or identify close ones. 

Individuals must rely only on nonverbal clues or basic words to communicate.  Significant physical deterioration causes problems with movement, eating, and bladder/bowel control. 

The attention and help needed by those in this stage must be available constantly.

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The impact on cognitive functions of Alzheimer’s disease

Alzheimer’s disease has a catastrophic impact on cognitive capacities and progressively erodes a person’s identity and talents.  One of the illness’s most severe and upsetting features is the deterioration of cognitive abilities. 

Let’s examine how Alzheimer’s disease specifically impacts cognitive abilities:

1. Memory loss and forgetfulness

Memory impairment is a hallmark feature of Alzheimer’s disease.  Initially, people could struggle with short-term memory, which could cause them to forget recent conversations or occurrences [4]. 

Long-term memories, particularly treasured moments and meaningful life experiences are also impacted as the condition worsens.  Memory loss interferes with everyday tasks, interpersonal interactions, and the capacity to carry out normal duties.

2. A decline in language and communication skills

Language and communication skills increasingly deteriorate as a result of Alzheimer’s disease. Finding the correct words becomes difficult, and people may struggle to communicate or follow discussions. 

Breakdowns in communication cause annoyance, social disengagement, and a feeling of isolation. People may rely increasingly on nonverbal signs and gestures to express their needs and feelings as the condition progresses.

3. Impaired reasoning and problem-solving abilities

Alzheimer’s disease gradually hampers cognitive functions involved in reasoning, critical thinking, and problem-solving. 

Planning activities or managing cash are examples of complex chores that are harder to do. People may have trouble making judgments or understanding abstract ideas. 

Their independence and capacity to deal with problems daily deteriorate as a result.

Disorientation and spatial awareness difficulties
Photograph: nikolast1/Envato

4. Disorientation and spatial awareness difficulties

An individual’s sense of time, location, and spatial orientation may be affected by Alzheimer’s disease. Even in familiar situations, people might get confused, which can cause uncertainty and worry. 

They can have trouble following instructions or becoming disoriented in familiar places. Problems with spatial awareness raise the possibility of accidents and need continual supervision.

5. A decline in executive functioning

The ability to organize, set priorities, and multitask is one of the executive skills gradually hampered by Alzheimer’s disease. People may have trouble organizing and carrying out duties, properly using their time, and paying attention. 

As a result, individuals can need help with everyday tasks and have difficulty adjusting to new circumstances.

The global impact of Alzheimer’s disease

Beyond the level of the person, Alzheimer’s disease poses substantial difficulties and burdens on a worldwide scale. Healthcare systems, nations’ economies, and cultures all around the world are affected by this neurodegenerative condition

Let’s look at the effects of Alzheimer’s disease on the world:

1. The economic burden on healthcare systems

The impact of Alzheimer’s disease on the world’s healthcare systems is enormous. Long-term care, diagnosis, and treatment all come with significant expenditures. 

Healthcare systems face the problem of offering specialized treatment and assistance to those impacted by Alzheimer’s as the disease’s incidence rises. Not only are people and families being impacted by the financial strain but also governments and healthcare budgets.

2. Challenges in dementia care worldwide

There are several difficulties in providing high-quality care for people with Alzheimer’s disease worldwide. To satisfy the special requirements of persons with the condition, carers and medical professionals must get enough training. 

In addition, it’s critical to guarantee that people with dementia have access to the necessary medical tools, support services, and surroundings.  Working together across industries and nations is necessary to address these issues.

3. Initiatives and policies addressing the issue

Governments, corporations, and advocacy groups have moved to create legislation and programs after realizing how urgent it is to deal with Alzheimer’s. 

These initiatives attempt to help afflicted people and their families, provide funds for research, boost awareness and improve care standards.  Research networks and international partnerships help to increase our knowledge of the illness and the creation of viable remedies.

4. Impact on caregivers and families

Families and caregivers with Alzheimer’s disease bear a heavy emotional, physical, and monetary strain. Giving care to those with the condition can be draining and emotionally taxing. 

The obligations frequently interfere with the carers’ work, financial security and general well-being [5]. To address these issues and offer carers and families the help they so desperately need, support programs, respite care and caregiver training efforts are essential.

5. Stigma and awareness

Many civilizations still stigmatize and misunderstand Alzheimer’s disease. It is vital to spread knowledge about the illness, its effects, and the value of early detection and treatments. 

Support for those with Alzheimer’s and their families is fostered via initiatives to lessen stigma and increase understanding.


The impact of Alzheimer’s disease on healthcare systems, economies and carers worldwide is astounding. 

A concerted effort is needed to address the problems caused by the disease, including more money for research, assistance for caregivers and adopting dementia-friendly laws and programs.

Supporting those with the disease and their families requires decreasing stigma and increasing knowledge about Alzheimer’s.  By banding together, society can cooperate to improve care, promote research, and eventually discover a solution for this sneaky illness.


How does Alzheimer’s disease kill?

Alzheimer’s disease does not directly cause death. Rather, it increases an individual’s vulnerability to other health complications, such as infections or organ failure, which can ultimately lead to their demise.

Why does Alzheimer’s destroy the brain?

The buildup of aberrant protein deposits such as beta-amyloid plaques and neurofibrillary tangles, damages the brain. These buildups interfere with brain cell communication and cause inflammation, resulting in neuron death.

Is Alzheimer’s considered a mental illness?

No, it is a neurodegenerative condition that predominantly affects the brain and causes memory loss and gradual cognitive decline. Alzheimer’s disease may affect mental health and cognition, but it differs from other mental illnesses including schizophrenia, anxiety disorders, and depression.

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Photograph: Rido81/Envato
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