Learning more than two languages helps prevent dementia in old age, a study suggests.
A team of researchers led by Subarna Alladi at the Nizam Institute of Medical Sciences in India looked at 648 dementia sufferers and found that those who spoke more than two languages ended up with dementia on average four years later than those who spoke just one.
The average age of the patients was 66. The findings were published in the journal Neurology on Wednesday.
Dementia is usually classified into three types: vascular dementia caused by blocked blood vessels, frontal or temporal dementia caused by loss of functions in those parts of the brain, and Alzheimer's disease caused by deteriorating nerves in the brain.
According to the researchers, learning foreign languages helped prevent all three types.
http://english.chosun.com/site/data/html_dir/2013/11/07/2013110701486.html
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