Featured Research

from universities, journals, and other organizations

Weight Loss In Old Age May Signal Dementia

Date:
May 22, 2009
Source:
American Academy of Neurology
Summary:
A new study shows that older people who are thinner or are losing weight quickly are at a higher risk of developing dementia, especially if they started out overweight or obese.

A new study shows that older people who are thinner or are losing weight quickly are at a higher risk of developing dementia, especially if they started out overweight or obese. The research is published in the May 19, 2009, print issue of Neurology®, the medical journal of the American Academy of Neurology.

Related Articles


For the study, researchers followed for eight years 1,836 Japanese Americans in Washington state with an average age of 72. During that time, 129 people developed dementia.

The research found that people with lower body mass index (BMI) scores at the beginning of the study were 79 percent more likely to develop dementia than those with higher BMI scores.

In addition, those who lost weight over the study period at a faster rate were nearly three times more likely to develop dementia than those who lost weight more slowly over time. This result was more pronounced in those who were overweight or obese to start; those with a BMI of 23 or higher had an 82-percent reduced risk of developing the disease compared to those who were normal or underweight. The results were the same after testing for other health risk factors such as smoking, exercise and gender.

"Our finding suggests that losing weight quickly in older age may be an early sign of dementia," said study author Tiffany Hughes, PhD, MPH, who is with the University of Pittsburgh School of Medicine but conducted the research while she was a doctoral student at the University of South Florida. "This doesn't mean that being obese or overweight is healthy for the mind or body, but losing weight may be a sign of emerging brain disease."

Hughes says other current research shows that, in contrast, a larger belly in midlife may be a risk factor for dementia.

"Dementia has been shown to develop in the brain decades before any symptoms develop," Hughes said. "These findings likely reflect that process. In middle age, obesity may be a risk factor for dementia, while declining weight in late life may be considered one of the first changes from the disease that occurs before it actually affects a person's memory."


Story Source:

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


Cite This Page:

American Academy of Neurology. "Weight Loss In Old Age May Signal Dementia." ScienceDaily. ScienceDaily, 22 May 2009. <www.sciencedaily.com/releases/2009/05/090518161110.htm>.
American Academy of Neurology. (2009, May 22). Weight Loss In Old Age May Signal Dementia. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2009/05/090518161110.htm
American Academy of Neurology. "Weight Loss In Old Age May Signal Dementia." ScienceDaily. www.sciencedaily.com/releases/2009/05/090518161110.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) — A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com
WH Plan to Fight Antibiotic-Resistant Germs

WH Plan to Fight Antibiotic-Resistant Germs

AP (Mar. 27, 2015) — The White House on Friday announced a five-year plan to fight the threat posed by antibiotic-resistant bacteria amid fears that once-treatable germs could become deadly. (March 27) Video provided by AP
Powered by NewsLook.com
House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) — In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
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