Alzheimer’s disease

Alzheimer’s disease is a progressive neurodegenerative disorder that leads to a gradual decline in memory, intellect, and the ability to perform everyday activities.

It is the most common form of dementia and most often develops in people over 65, although it can occur earlier.

Causes and Mechanisms of Development

The exact causes of Alzheimer’s disease are not fully understood, but it is known that the destruction of brain neurons and disruption of nerve impulse transmission are at its core.

Key factors include:

• accumulation of beta-amyloid—a protein that forms toxic plaques between neurons;
• disruption of the tau protein structure, leading to the formation of neurofibrillary tangles;
• genetic predisposition (especially the presence of the APOE ε4 gene);
• inflammatory processes and oxidative stress;
• lifestyle factors—sedentary behavior, sleep deprivation, unbalanced diet.

Symptoms

The disease develops gradually, and its manifestations intensify over time.

Main symptoms include:

• forgetfulness, difficulties in remembering new events;
• disorientation in time and space;
• speech disturbances and difficulty finding words;
• decreased attention span and logical thinking;
• changes in behavior, apathy, irritability;
• loss of the ability to care for oneself in the later stages.

Diagnosis

The diagnosis is made based on a comprehensive examination, including:

1. neurological and psychoneurological examination;
2. assessment of cognitive functions (memory and thinking tests);
3. MRI or CT of the brain to detect atrophy;
4. analysis of cerebrospinal fluid or blood for beta-amyloid and tau protein.

Treatment and Support

There is no way to completely cure Alzheimer’s disease, but treatment can help slow its progression and improve quality of life.

Used are:

• medications that improve nerve impulse transmission (acetylcholinesterase inhibitors, memantine);
• antioxidants and neuroprotectors;
• cognitive stimulation and regular mental exercises;
• physical activity, healthy diet, and adequate sleep.

Prevention

Although Alzheimer’s disease cannot be completely prevented, the risk of its development can be reduced by:

• mental activity and continuous learning;
• regular physical exercise;
• controlling blood pressure, blood sugar, and cholesterol levels;
• a balanced diet with sufficient omega-3 and antioxidants;
• quality sleep and stress management.

Alzheimer’s disease is an inherent challenge for modern medicine and society.

Early diagnosis and proper care can significantly prolong active life and preserve a person’s identity for a longer time.