Introduction:
Dementia is not a disease but is a medical term to describe a group of symptoms associated with memory loss as well as thinking and reasoning skills. The condition is severe enough to limit the person's ability to perform everyday activities. Alzheimer's disease is the most severe form of dementia and accounts for 60 to 80 percent of cases. There are many factors contributing to dementia. Learn more about dementia, its causes, symptoms, treatment, and ways to prevent it.
What Is Dementia?
Dementia is not a disease. Rather it is a condition that affects memory, thinking, and other social abilities that can interfere with day-to-today activities and affect the quality of life. Even though dementia causes memory loss, it is not the only cause of memory loss. There are multiple other reasons that can result in memory loss.
What Are the Causes of Dementia?
Dementia can typically occur when there is damage to the connections of the nerve cells to the brain or when there is loss or death of nerve cells. This happens as a result of head injuries, brain tumors, stroke, and other causes.
What Are the Different Types of Dementia?
There are certain types of dementia that progress and that cannot be reversed. They include:
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Alzheimer's disease.
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Lewy Body dementia.
Alzheimer's Disease:
Alzheimer's disease is one cause of dementia. It is considered that mutation of the genes does play a small role in causing this disease. Though several genes are involved in Alzheimer's disease, the most important gene that plays a role is apolipoprotein E4 (APOE).
Vascular Dementia:
Vascular dementia is caused when there is damage to the blood vessels that supply blood to the brain. The common signs of vascular dementia are slow thinking, difficulty in problem-solving, and not being able to focus or concentrate.
Lewy Body Dementia:
Lewy bodies are abnormal masses of protein that are found in people affected with Alzheimer's, Lewy body, and Parkinson's disease.
Frontotemporal Dementia:
This condition occurs when there is a breakdown of nerve cells and their connections in the frontal and temporal lobes of the brain.
Mixed Dementia:
People with this condition have a combination of multiple causes, such as Alzheimer's disease, Vascular dementia, and Lewy body dementia.
What Are the Risk Factors For Dementia?
The common risk factors for dementia are the following:
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Age.
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Family history.
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People with down syndrome.
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Lack of exercise.
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Excessive alcohol consumption.
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Other factors like high blood pressure, cholesterol, and obesity.
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Diabetes.
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The habit of smoking.
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History of head trauma.
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Sleep disorders.
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Nutritional deficiencies such as vitamin D, vitamin B12, vitamin B6, and Folate are known to increase the risk of dementia.
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Certain medications can affect memory, such as drugs containing Diphenhydramine and drugs that are used to treat urinary problems, such as Oxybutynin.
Age:
Dementia is generally not a normal part of the aging process, but the risk of dementia increases as age increases. It can even occur in younger people.
Family History:
People having a family history of dementia are at high risk of developing dementia.
Lack of Exercise:
There are studies showing that lack of exercise can increase the risk of developing dementia.
Excessive Alcohol Consumption:
Excessive alcohol consumption has been known to cause changes in the function of the brain. The use of alcohol has been known to be linked to an increased risk of developing dementia.
What Are the Common Symptoms of Dementia?
The early symptoms include forgetfulness, confusion, and the inability to recognize common things. The person may experience a decline in cognitive abilities such as memory loss, mental decline, and confusion, especially in the evening hours.
There is disorientation, inability to speak or understand a language, and making up things. Another common symptom is limited social skills and loss of clear thinking abilities.
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Behavioral: There is a feeling of irritability, personality changes, restlessness, lack of restraint or wandering, and getting lost.
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Mood: There is anxiety, loneliness, mood swings, or nervousness.
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Psychological: The person is depressed, has hallucinations, or is paranoid.
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Muscular: There is an inability to combine muscle movements with an unsteady gait. While walking, they fall commonly.
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Speech: They have disorganized speech and repeat their words a lot.
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Sleep: There is disturbed sleep or a sleep disorder.
What Other Conditions Have Similar Symptoms As Dementia?
There are some conditions with similar symptoms commonly misdiagnosed to be dementia. It includes:
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Depression.
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Problems with thyroid.
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Certain infections like HIV (human immunodeficiency virus), neurosyphilis.
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Use of certain drugs or medications.
How Is Dementia Diagnosed?
Dementia requires a medical diagnosis mainly made through history from the person or the guardian about any of the behavioral changes and other symptoms discussed above.
There are a few laboratory tests or imaging tests that may be required if the doctor wants to rule out the cause, which includes:
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CT (computed tomography) scans.
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MRI (magnetic resonance imaging).
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PET (positron emission tomography).
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Blood tests to look for any nutritional deficiencies.
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Psychiatric evaluation.
How Is Dementia Treated?
Severe dementia has no cure, but in early dementia, some medications and therapies may help manage the symptoms. There are certain medications that can help manage the symptoms. Such drugs include the following:
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Donepezil.
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Galantamine.
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Rivastigmine.
Other severe forms of dementia have no cure.
What Are the Complications of Dementia?
Dementia can affect the different organ systems and can interfere in their functioning. So when dementia is left untreated, it can lead to a number of complications such as:
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Inability to perform day-to-day activities.
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Poor nutritional status.
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Pneumonia.
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Personal safety challenges such as driving, walking, or living alone.
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Death.
Can Dementia Be Prevented?
There is no particular way to prevent dementia, but there are certain ways when followed can help lower the risk of dementia. It includes:
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Try to keep your mind active by solving puzzles, playing word games, and reading.
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Keep yourself physically and socially active.
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Try to quit smoking.
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Try to get a sufficient amount of vitamins by maintaining a healthy diet.
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Get quality and sound sleep.
Conclusion:
If your loved ones are experiencing the symptoms of dementia, try to seek medical help from a healthcare professional who is specialized in this field.