Home
Subscribe (free)
About NaturalNews
Contact Us
Write for NaturalNews
Media Info
Advertising Info
Exercise

Regular exercise increases brain volume, protects against age-related dementia

Friday, February 18, 2011 by: Marianne Leigh
Tags: exercise, brain volume, health news

Most Viewed Articles
https://www.naturalnews.com/031394_exercise_brain_volume.html
Delicious
diaspora
Print
Email
Share

(NewsTarget) Everyone fears aging to some extent, even if they age well. But well beyond wrinkles and sagging skin, the most intimidating loss associated with aging is that of memory and cognition. These functions rely heavily on a part of the brain called the hippocampus and have recently been the focus of study by a team of American researchers. The study found that, in a group of adults over 65 years of age, regular aerobic exercise accompanies increases in hippocampal volume, and these gains were related to marked improvements in memory.

This most recent American study, published in the Proceedings of the National Academy of Sciences, confirms and expands upon the findings of a previous, more extensive study done in Italy and published in 2008 in the journal Neurology.

The Italian study followed a group of subjects aged 65 years and older for four years, using cognitive assessment tests to gauge the health of participants, and correlating the findings to information about participants' exercise habits. The study was significant not only because it found dramatic reductions in development of dementia for those who exercised regularly (a 73% decrease), it also showed that the intensity of exercise had almost no bearing on results: exercises like walking, climbing stairs and gardening were just as effective at staving off dementia as more strenuous activities.

The American study used magnetic resonance imaging (MRI) to assess changes in hippocampal volume in a group of participants over age 65, who performed regular aerobic exercise, and in a control group, who did not. Despite the fact that adults of this age lose 1% to 2% of their hippocampal volume per year, this study found an average gain of 2% in hippocampal volume among participants who engaged in regular aerobic walking, and the expected average loss of 1.4% in the control group. The study additionally found that increases in hippocampal volume accompanied increases in memory function.

Studies that look at exercise's effect on the brain during aging are ongoing and very popular, with all signs pointing to the same conclusion: regular moderate exercise, especially aerobic walking, is an excellent way to fight cognitive decline. It is similarly associated with a significant decrease in the development of Alzheimer's, and it has even been shown to slow the progression of the disease in individuals already affected.

So with all this evidence pointing to the inescapable conclusion that aerobic exercise is essential for aging well, there's more reason than ever to do your body this favor. Go take that 30-minute walk today, and then tomorrow, get up and do it again. Your brain will inevitably thank you.

Sources:

-http://www.pnas.org/content/early/2011/01/25...
-http://www.neurology.org/content/70/19_Part_...
-http://www.tuftshealthletter.com/ShowArticle...


About the author

Marianne Leigh is a writer deeply concerned with environmental and natural health issues.
She is currently creating a local food blog for her community as a means of provoking discussions about food, natural health and local sustainable agriculture.
You may contact her for further details on this project.
[email protected]


Join the Health Ranger's FREE email newsletter
Get breaking news alerts on GMOs, fluoride, superfoods, natural cures and more...
Your privacy is protected. Unsubscribe at any time. | Learn more...

comments powered by Disqus

Get alerted on heavy metals and pesticide test results for foods and supplements

Natural News is about to begin releasing lab test results for off-the-shelf food, supplement and pet food products, covering heavy metals, nutritive minerals, pesticides and herbicides. These details will be released exclusively to Natural News email newsletter subscribers (FREE) and will NOT be publicly posted on the website. To be alerted, join our free email newsletter now, and watch for lab test results in the weeks ahead.

Enter your email address below to subscribe to our email announcement list (but don't use gmail). Your privacy is protected and you can unsubscribe at any time. If you don't join our email list, you may never see our valuable content again via Facebook, Google or YouTube. CENSORSHIP has now reached EXTREME levels across the 'net. The truth is being suffocated. Subscribe now if you want to escape the delusional bubble of false reality being pushed by Google and Facebook.

Once you click subscribe, we will send you an email asking you to confirm your free subscription.