Featured Research

from universities, journals, and other organizations

Speaking a second language may delay different dementias

Date:
November 6, 2013
Source:
American Academy of Neurology (AAN)
Summary:
In the largest study on the topic to date, research shows that speaking a second language may delay the onset of three types of dementias.

In the largest study on the topic to date, research shows that speaking a second language may delay the onset of three types of dementias. The research is published in the November 6, 2013, online issue of Neurologyฎ, the medical journal of the American Academy of Neurology.

Related Articles


The study found that people who spoke two languages developed dementia four and a half years later than people who only spoke one language.

“Our study is the first to report an advantage of speaking two languages in people who are unable to read, suggesting that a person’s level of education is not a sufficient explanation for this difference,” said study author Suvarna Alladi, DM, with Nizam's Institute of Medical Sciences in Hyderabad, India. “Speaking more than one language is thought to lead to better development of the areas of the brain that handle executive functions and attention tasks, which may help protect from the onset of dementia.”

For the study, 648 people from India with an average age of 66 who were diagnosed with dementia were evaluated. Of those, 391 spoke two or more languages. A total of 240 had Alzheimer’s disease, 189 had vascular dementia and 116 had frontotemporal dementia, with the remainder having dementia with Lewy bodies and mixed dementia. Fourteen percent were illiterate.

People who spoke two languages had a later onset of Alzheimer’s disease, frontotemporal dementia and vascular dementia than people who spoke only one language. The difference was also found in those who could not read. There was no additional benefit in speaking more than two languages.

The two-language effect on age of dementia onset was shown separately of other factors such as education, gender, occupation and whether participants lived in the city or country.

“These results offer strong evidence for the protective effect of bilingualism against dementia in a population very different from those studied so far in terms of its ethnicity, culture and patterns of language use,” Alladi said.


Story Source:

The above story is based on materials provided by American Academy of Neurology (AAN). Note: Materials may be edited for content and length.


Journal Reference:

  1. Suvarna Alladi, DM, Thomas H. Bak, MD, Vasanta Duggirala, PhD, Bapiraju Surampudi, PhD, Mekala Shailaja, MA, Anuj Kumar Shukla, MPhil, Jaydip Ray Chaudhuri, DM and Subhash Kaul, DM. Bilingualism delays age at onset of dementia, independent of education and immigration status. Neurology, November 2013

Cite This Page:

American Academy of Neurology (AAN). "Speaking a second language may delay different dementias." ScienceDaily. ScienceDaily, 6 November 2013. <www.sciencedaily.com/releases/2013/11/131106162529.htm>.
American Academy of Neurology (AAN). (2013, November 6). Speaking a second language may delay different dementias. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2013/11/131106162529.htm
American Academy of Neurology (AAN). "Speaking a second language may delay different dementias." ScienceDaily. www.sciencedaily.com/releases/2013/11/131106162529.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins