More Bad News for Smokers: Smoking Thins a Vital Part of the Brain

Written by on February 16, 2015 in Medical Advances & Procedures, Sci-Tech, Science with 0 Comments
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By S. Karama, S. Ducharme, J. Corley, F. Chouinard-Decorte, J. M. Starr, J. M. Wardlaw, M. E. Bastin, I. J. Deary | www.sciencedigest.com | Originally titled: “Smoking Thins Vital Part of Brain” | Source: Based on materials provided by McGill University (Note: Materials may have been edited for content and length).

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Editor's Note: Mental and physical decline is said to be a part of growing old, but this study shows that apparently some of your issues with memory, language, and perception may actually have to do with smoking. This is sobering news for smokers and those who work around people who smoke.

A major study shows new evidence that long-term smoking could cause thinning of the brain's cortex. The cortex is the outer layer of the brain in which critical cognitive functions such as memory, language and perception take place. Interestingly, the findings also suggest that stopping smoking helps to restore at least part of the cortex's thickness. Years ago, children were warned that smoking could stunt their growth, but now a major study by an international team including the Montreal Neurological Institute at McGill University and the University of Edinburgh shows new evidence that long-term smoking could cause thinning of the brain's cortex. The cortex is the outer layer of the brain in which critical cognitive functions such as memory, language and perception take place. Interestingly, the findings also suggest that stopping smoking helps to restore at least part of the cortex's thickness.


The study involved 244 male and 260 female subjects — five times larger than any previous similar research on smoking and cortical thickness. Their average age was 73. The test group included current smokers, ex-smokers and non-smokers. All of the subjects were examined as children in 1947 as part of the Scottish Mental Survey. Researchers used health data gathered during recent personal interviews with the subjects, and also analyzed data from MRI scans showing the current state of the subjects' brain cortices.

“We found that current and ex-smokers had, at age 73, many areas of thinner brain cortex than those that never smoked. Subjects who stopped smoking seem to partially recover their cortical thickness for each year without smoking,” says the study's lead author Dr. Sherif Karama, assistant professor of psychiatry at McGill University, psychiatrist at the Douglas Mental Health University Institute and an affiliate of the Montreal Neurological Institute. The apparent recovery process is slow, however, and incomplete. Heavy ex-smokers in the study who had given up smoking for more than 25 years still had a thinner cortex.

[Read more here]

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Robert O’Leary, JD BARA, has had an abiding interest in alternative health products and modalities since the early 1970’s, and he has seen how they have made people go from lacking health to vibrant health. He became an attorney, singer-songwriter, martial artist and father along the way and brings that experience to his practice as a BioAcoustic Soundhealth Practitioner, under the tutelage of the award-winning founder of BioAcoustic Biology, Sharry Edwards, whose Institute of BioAcoustic Biology has now been serving clients for 30 years with a non-invasive and safe integrative modality that supports the body’s ability to self-heal using the power of the human voice. Robert brings this modality to serve clients in Greater Springfield (MA), New England and “virtually” the world, through his new website, www.romayasoundhealthandbeauty.com. He can also be reached at romayasoundhealthandbeauty@gmail.com

 

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