Brain diseases

The most common cause of dementia is Alzheimer's disease, which accounts for approximately 2/3 of all cases. The second most common is vascular dementia, which is due to a clot or bleeding in the brain and corresponds to approximately 25% of all cases. There are also mixed forms of Alzheimer's disease and vascular dementia, so-called mixed dementia. The third most common is Lewy body disease, which corresponds to approximately 5-10 percent of all dementia diagnoses. Frontotemporal dementia (frontotemporal dementia), alcohol-induced dementia and Parkinson's disease are other diseases that affect cognitive ability. Even ALS, which is closely linked to frontotemporal dementia, often leads to cognitive impairment.

In total, there are about 100 different diseases and conditions, all of which lead to cognitive impairment and, in the final stage, dementia. There is currently no cure for these diseases but only symptomatic treatment which may be well worth trying as it can alleviate the symptoms and even postpone the time of need for other accommodation. Against Alzheimer's disease, there are currently 4 registered medicines for Alzheimer's disease. It is therefore the case that all these diseases unfortunately lead to death. However, there is still a lot that can be done to ensure that the person who is sick and you as a loved one have the best possible situation and hopefully new more effective treatment options will come in the coming years. Then the need for early and safe diagnostics will increase. We believe that digital tools for early screening of cognitive functions will be very helpful then.

Johan Sundelöf, Senior Physician, Specialist in Geriatrics and Palliative Medicine
Reviewed by: Johan Sundelöf, Senior Physician, Specialist in Geriatrics and Palliative Medicine
Updated: January 22, 2021
Published: 15 December, 2020

What is dementia?How common is dementia?Diseases of the brainAlzheimer's diseaseVascular dementiaLewy body dementiaForehead dementia / Frontotemporal dementia diseaseParkinson's diseaseAlcohol-induced dementia and Wernicke-Korsakoff syndromeNormal pressure hydrocephalus (iNPH)Rare dementia diseasesHeredity

Brain diseases

Alzheimer's disease

Vascular dementia

Lewy body dementia

Frontotemporal dementia

Parkinson's disease

Alcohol-induced dementia and Wernicke-Korsakoff syndrome

Normal pressure hydrocephalus (iNPH)

Rare dementias



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