Moderate drinking, especially wine, associated with better cognitive function
The subjects (average age 58 and free of stroke) were followed over 7 years during which they were tested with a range of cognitive function tests. Among women, there was a lower risk of a poor testing score for those who consumed wine at least 4 or more times over two weeks in comparison with those who drink
The expected associations between other risk factors for poor cognitive functioning were seen, i.e. lower testing scores among people who were older, less educated, smokers, and those with depression, diabetes, or hypertension.
It has long been known that “moderate people do moderate things.” The authors state the same thing: “A positive effect of wine . . . could also be due to confounders such as socio-economic status and more favourable dietary and other lifestyle habits.
The authors also reported that not drinking was associated with significantly lower cognitive performance in women. As noted by the authors, in any observational study there is the possibility of other lifestyle habits affecting cognitive function, and the present study was not able to adjust for certain ones (such as diet, income, or profession) but did adjust for age, education, weight, depression, and cardiovascular disease as its major risk factors.
The results of this study support findings from previous research on the topic: In the last three decades, the association between moderate alcohol intake and cognitive function has been investigated in 68 studies comprising 145,308 men and women from various populations with various drinking patterns. Most studies show an association between light to moderate alcohol consumption and better cognitive function and reduced risk of dementia, including both vascular dementia and Alzheimer's Disease.
Such effects could relate to the presence in wine of a number of polyphenols (antioxidants) and other micro elements that may help reduce the risk of cognitive decline with ageing. Mechanisms that have been suggested for alcohol itself being protective against cognitive decline include effects on atherosclerosis ( hardening of the arteries), coagulation ( thickening of the blood and clotting), and reducing inflammation ( of artery walls, improving blood flow).
Study source: Arntzen KA, Schirmer H, Wilsgaard T, Mathiesen EB. Moderate wine consumption is associated with better cognitive test results: a 7 year follow up of 5033 subjects in the Tromsø Study. Acta Neurol Scand 2010; Suppl 190:23-29.
Contributions to these comments from the International Scientific Forum on Alcohol Research were from the following:
David Vavazour, PhD, Dept. of Food and Nutritional Sciences, The University of Reading, UK
Ross McCormick PhD, MSC, MBChB, Associate Dean, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
R. Curtis Ellison, MD, Section of Preventive Medicine & Epidemiology, Boston University School of Medicine, Boston, MA, USA
Erik Skovenborg, MD, Scandinavian Medical Alcohol Board, Practitioner, Aarhus, Denmark
Gordon Troup, MSc, DSc, School of Physics, Monash University, Victoria, Australia
For the detailed critique of this paper by the International Scientific Forum on Alcohol Research, go to www.alcoholforum4profs.org and click on Recent Reports. The 35 specialists who are members of The International Scientific Forum on Alcohol Research are happy to respond to questions from Health Editors regarding emerging research on alcohol and health and will offer an independent opinion in context with other research on the subject
Contacts: Helena Conibear via: helena@alcoholforum4profs.org UK tel: + 44 1300 341601 Or + 44 7876 593 345 Professor R Curtis Ellison Ellison@alcoholforum4profs.org US tel: +1 508 620-0537
Media Contact
All latest news from the category: Studies and Analyses
innovations-report maintains a wealth of in-depth studies and analyses from a variety of subject areas including business and finance, medicine and pharmacology, ecology and the environment, energy, communications and media, transportation, work, family and leisure.
Newest articles
ONe nova to rule them all
Astronomers have proposed a new theory to explain the origin of phosphorus, one of the elements important for life on Earth. The theory suggests a type of stellar explosion known…
High-efficiency hollow-core fiber optic cable helps medical procedures
Recently, a research group led by Prof. JIANG Haihe from Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) designed a 6-hole micro-structure anti-resonant air-core fiber (AR-HCF) with a larger core diameter…
Tauonium: the smallest and heaviest atom with pure electromagnetic interaction
The hydrogen atom was once considered the simplest atom in nature, composed of a structureless electron and a structured proton. However, as research progressed, scientists discovered a simpler type of…