News
News Home
Quick Bites
Exploradio
News Archive
News Channel
Special Features
NPR
nowplaying
On AirNewsClassical
Loading...
  
School Closings
WKSU Support
Funding for WKSU is made possible in part through support from the following businesses and organizations.

Cedar Point

Wayside Furniture

Knight Foundation


For more information on how your company or organization can support WKSU, download the WKSU Media Kit.

(WKSU Media Kit PDF icon )


Donate Your Vehicle to WKSU

Programs Schedule Make A Pledge Member BenefitsFAQ/HelpContact Us
Health and Medicine




Exploradio - Obesity and memory
New research shows that weight loss can improve brain function -  but the opposite is also true, weight gain leads to memory loss.
by WKSU's JEFF ST. CLAIR
This story is part of a special series.


Reporter / Host
Jeff St. Clair
 
Holiday feasting makes watching your weight especially difficult. Kent State researcher John Gunstad and his colleagues have found that excess weight gain can lead to memory loss in addition to other adverse health effects.
Download (WKSU Only)
In The Region:

The holidays are hard on just about everyone’s waistline. But that’s what New Year’s resolutions are for.

A new body of research, though, is showing that for seriously obese people, keeping those New Year’s resolutions can actually improve brain function.

In this week’s Exploradio, we look at the link between weight loss and memory gain.

Exploradio - Obesity and memory

Other options:
Windows Media / MP3 Download (3:58)


(Click image for larger view.)

Weight gain and memory loss

The holidays mean music, family get togethers, and of course, food. And then more food.

And while a few extra pounds earned over the holidays are no big deal, a Kent State researcher says the problems created by obesity are far reaching.

Neuropsychologist John Gunstad says one of the side effects of weight gain is memory loss, and obesity causes problems with heart disease, and blood pressure, and diabetes. "This is another type of side-effect, another consequence of weight gain.”

Gunstad and an international team of researchers are working with a group of overweight people who have taken a drastic step to shed pounds: bariatric surgery. That’s where part of the stomach is removed or restricted to force people to eat less. Gunstad tested the brain functions of hundreds of obese people before the surgery, and after.

“And we know that many individuals have reported that their memory has improved, or their memory feels better in the process of losing weight.  And we don’t know that’s simply because their feeling better or they’re actually noticing these memory changes. But on testing, when we have a chance to put them on a computer and see what their memory can actually do, we see that they get better. And they get better as fast as three months later.”

Testing the theory 

I’m not a candidate for bariatric surgery. Still, Gunstad offers to show me the computer test he uses to measure brain function in his subjects.

It’s an hour-long test that looks at a series of brain functions like memory, attention, impulsiveness and to some degree dexterity as numbers flash on the screen and my poor brain is asked to match them…

Gunstad has run hundreds of these tests over the years. And the data shows a clear link between losing weight and improved brain function. He says a lot of things could be tied to that link.

“At this point, we have 35 different possibilities that we’re in the process of sorting out. And that’s probably an incomplete list.”

One theory is that obesity hurts overall health. Your heart has to work harder, heavy people may have trouble sleeping, high blood pressure, and often, diabetes -- and the brain like any other organ, suffers.

But Gunstad says new research is pointing to a more troubling effect of excess weight on the brain.

Obesity ages the brain 

“We found that obese individuals, in a recent paper that came out, obese individuals actually started to show pathological changes in the brain similar to Alzheimer’s disease at a much higher rate than their lean counterparts. So it’s arguing that whatever obesity is causing in the body is actually damaging the brain in a way that speeds the aging process, that speeds the Alzheimer's disease process far before it really ever should.”

Again, Gunstad ’s work shows a link between obesity and bad effects on the brain, but not the cause.

“It might be things that are genetic. It’s possible that there’re some particular genes that causes a person to have both of those: You’re at a higher risk for obesity and memory loss.”

The good news is that not everyone with a weight problem is at risk for memory loss. Much depends on the “make-up” of the person’s brain, what Gunstad calls its “cognitive reserve.”

“Some people’s brains are just wired better than others. They’re somehow more resilient to disease or more resilient to damage than other people. And we’re not sure how that happens, if it’s at the chemical level or at the tissue level, or where it may actually be.”

Gunstad says the main thing to remember is that losing weight improves health in the body and in the brain, and that’s food for thought.

The Centers for Disease Control reports two-thirds of Americans are overweight, nearly one-third are actually obese.

Gunstad and his colleagues warn that America’s obesity epidemic is no longer just a risk for individuals. It could impact American productivity and competitiveness. 

I’m Jeff St. Clair with this week’s exploradio.


 


Related Links & Resources
America's obesity epidemic - interactive map

Test your brain functions!


Related WKSU Stories

Exploradio - The sea cucumber and the brain
Monday, November 28, 2011

Exploradio - The Kinect connection
Monday, November 21, 2011

Add Your Comment
Name:

Location:

E-mail: (not published, only used to contact you about your comment)


Comments:




 
Page Options

Print this page

E-Mail this page / Send mp3

Share on Facebook



Support for Exploradio
provided by:








Stories with Recent Comments

Seven minutes changed everything, but what changed Ashford Thompson?
He shot the guy four times in the head. I have never been that drunk or mad, and I have been through it. Shoot a guy once is bad, maybe a mistake, shoot a guy f...

First cricket farm in the U.S. opens in Youngstown
I am interested in cricket flour to replace soy flour in a low carbohydrate diet. As soon as you have cricket flour available for the average person, please le...

New process starts digesting sludge in Wooster
Awesome! When do our sewage rates decrease accordingly?

Akron's Chapel Hill Mall in foreclosure
Not a surprise. Between the shoplifting, gangs and violence that goes on up there it is no wonder that no one feels safe to shop at Chapel Hill. They have sca...

Ohio launches investigation into at least one Concept charter school
I worked at Noble Academy Cleveland as admin assistant and enrolment coordinator for 6 years, I know this is so valid and true and can provide staff names and p...

Crisis looms in filling aviation industry jobs in Ohio and the nation
I listened to this story yesterday morning on the radio and just want to add this comment. My son went to school to train as an air traffic controller, and gra...

Cuyahoga Valley National Park considers fire to fight invasives
I'm for the controlled burn. There are not enough people (myself included) who volunteer for the removal of invasive plant species. Therefore, another solution ...

Remembering Cleveland music impresario Hank LoConti
The picture here is not the original Agora. It is the old WHK studios where the Agora moved into.

Copyright © 2014 WKSU Public Radio, All Rights Reserved.

 
In Partnership With:

NPR PRI Kent State University

listen in windows media format listen in realplayer format Car Talk Hosts: Tom & Ray Magliozzi Fresh Air Host: Terry Gross A Service of Kent State University 89.7 WKSU | NPR.Classical.Other smart stuff. NPR Senior Correspondent: Noah Adams Living on Earth Host: Steve Curwood 89.7 WKSU | NPR.Classical.Other smart stuff. A Service of Kent State University