Featured Research

from universities, journals, and other organizations

Women Lose Weight At Least A Decade Before Developing Dementia

Date:
August 23, 2007
Source:
American Academy of Neurology
Summary:
Women who have dementia start losing weight at least 10 years before the disease is diagnosed, according to a new study. The study conflicts with others suggesting that obesity in middle-age may be a risk factor for dementia.

Women who have dementia start losing weight at least 10 years before the disease is diagnosed, according to a study published in the August 21, 2007, issue of Neurology®, the medical journal of the American Academy of Neurology.

The researchers examined the records of 481 people with dementia and compared them to 481 people of the same age and gender who did not have dementia. The average weight was the same for those in the two groups from 21 to 30 years before the year the disease was diagnosed. But the women who would later develop dementia started losing weight up to 20 years before the disease was diagnosed. On average, those with dementia weighed 12 pounds less than those without the disease the year the disease was diagnosed.

"One explanation for the weight loss is that, in the very early stages of dementia, people develop apathy, a loss of initiative, and also losses in the sense of smell," said study author David Knopman, MD, of the Mayo Clinic in Rochester, MN, and member of the American Academy of Neurology. "When you can't smell your food, it won't have much taste, and you might be less inclined to eat it. And, apathy and loss of initiative may make women less likely to prepare nutritious meals and more likely to skip meals altogether."

Unlike women, men in this study who later developed dementia did not lose weight in the years before diagnosis. Knopman said the difference could be due to hormones, but a social reason seems just as likely.

"Middle-aged and elderly men are less likely to be preparing their own meals," he said. "Their spouses or adult children were more likely making meals for them, which would lessen the effect of the apathy, loss of initiative and loss of sense of smell."

The study conflicts with others suggesting that obesity in middle-age may be a risk factor for dementia. Obesity is also associated with diabetes, hypertension, and cardiovascular disease, which are risk factors for dementia. "We'll need to do more research to look into these differences," Knopman said.

The study was supported by grants from the National Institute on Aging.


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. "Women Lose Weight At Least A Decade Before Developing Dementia." ScienceDaily. ScienceDaily, 23 August 2007. <www.sciencedaily.com/releases/2007/08/070820161807.htm>.
American Academy of Neurology. (2007, August 23). Women Lose Weight At Least A Decade Before Developing Dementia. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2007/08/070820161807.htm
American Academy of Neurology. "Women Lose Weight At Least A Decade Before Developing Dementia." ScienceDaily. www.sciencedaily.com/releases/2007/08/070820161807.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) — Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
Study Says Most Crime Not Linked To Mental Illness

Study Says Most Crime Not Linked To Mental Illness

Newsy (Apr. 22, 2014) — A new study finds most crimes committed by people with mental illness are not caused by symptoms of their illness or disorder. Video provided by Newsy
Powered by NewsLook.com
Hagel Gets Preview of New High-Tech Projects

Hagel Gets Preview of New High-Tech Projects

AP (Apr. 22, 2014) — Defense Secretary Chuck Hagel is given hands-on demonstrations Tuesday of some of the newest research from DARPA _ the military's Defense Advanced Research Projects Agency program. (April 22) Video provided by AP
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) — NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
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:
from the past week

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