5% of people aged 65 and over have moderated to severe Alzheimer's disease, while 10-15% of the elderly in the same age group suffer from mild Alzheimer's disease.
Alzheimer's disease is the cause of most of dementia cases. It is a progressive disease that slowly destroys memory and thinking skills and possibly leads to loss of the ability to carry on a conversation, respond to the environment, and also do the simplest tasks.
Basically, the prevalence of Alzheimer's disease in developing countries is higher than other societies due to the rapid growth of the elderly population.
September 21 is designated as the World Alzheimer's Day, it is a global campaign that aims at raising awareness and highlighting issues faced by people affected by the disease.
The theme for World Alzheimer's Day in 2021 is 'Know dementia, know Alzheimer's'. This year’s campaign will shine a light on the warning signs of dementia, encouraging people to look for information, advice and support, as well as contacting the Alzheimer’s or dementia association in their country.
