Published 7th June 2017
The results of a new study have shown that even moderate alcohol intake can have a negative impact on cognitive health.
A new study concludes that even moderate alcohol consumption is linked to a raised risk of faster decline in brain health and mental function. The researchers say that their findings support the United Kingdom's recent tightening of guidance on alcohol and question the limits given in the United States guidelines… The data included information about weekly alcohol consumption and regular measures of brain function and mental performance. The participants also had an MRI brain scan at the end of the study.
When they analyzed the data, the researchers found that higher alcohol intake over the 30-year study period was tied to a higher risk of atrophy or tissue degeneration in the hippocampus, which is a part of the brain that is important for spatial orientation and memory.
Adolescents who drink alcohol are at increased risk for injury and substance use disorder later in life, even when they do not meet criteria for alcohol use disorder (AUD). This study assessed changes in grey matter volumes over a 10-year period between adolescence and early adulthood in individuals who had alcohol use (as defined by AUDIT-C score), but did not meet criteria for AUD or use other substances.
* Defined by authors as: heavy = AUDIT-C score of ≥4 for males or ≥3 for females; light = AUDIT-C score of ≤2.
Comments: This study demonstrates that even levels of alcohol consumption that may be considered benign “experimentation” during adolescence are associated with smaller grey matter in several brain regions. Functional changes in the insular cortex are associated with propensity to return to substance use; disrupted development in this area may be the basis of the association between early initiation and increased risk of AUD in adulthood. The results underscore the risks of adolescent alcohol use and suggest that AUD diagnostic criteria may not be sensitive enough to identify them in this population.
Sharon Levy, MD, MPH
Reference: Heikkinen N, Niskanen E, Könönen M, et al. Alcohol consumption during adolescence is associated with reduced grey matter volumes.
INDUSTRIAL EPIDEMICS DEFINED: The concept of an epidemic associated with the commercialization of a dangerous product was first developed in the instance of tobacco [5,6]. Beatrice Majnoni d'Intignano [7–9] extended this concept to epidemics related to the consumption of commercial products (e.g. alcohol, illicit drugs, food, cars, guns). We further modified that concept to cover diseases of consumers, workers and community residents caused by industrial promotion of consumable products, job conditions and environmental pollution, respectively, and to endemic as well as epidemic conditions. In each instance, public health-oriented policies run the risk of being opposed by industrial corporations in a health versus profit trade-off. In this editorial we argue that the term ‘industrial epidemics’ applies to alcohol because alcoholic beverages are industrial products, and alcohol-related problems fit the concept of increased frequency as a marker of epidemics, whether over time, in different places, or among subgroups of particular populations ….
There are several ways in which corporate activity may drive an epidemic, either initially when a new product is introduced or as a secondary impetus following an endemic period. ‘Generational epidemics’ derive from the need of corporations to replenish their population of users as old cohorts die out and new cohorts of potential users are moving toward adulthood. For example, as a new generation of potential drinkers comes of age, the alcohol industry competes for the young adult market. An important research question is how much of the recent increase in heavy episodic drinking among young Europeans is due to aggressive marketing by the alcoholic beverage industry? ‘Targeted epidemics’ refer to decisions by industrial corporations to single out particular groups for increased use or consumption of its products, or for the development of new products. In the case of alcohol there is a long history of such targeted epidemics, such as the Gin Epidemic in the 18th century [14,15]. In recent times, one may cite increased use of flavored malt beverages (‘alcopops’) [16,17] by adolescents in many countries as a targeted epidemic. Finally, ‘transnational epidemics’ are a special group of epidemics where the targets are foreign countries. Industries export their products to other countries to augment their markets or to develop new markets that are not yet saturated or subject to stringent regulations. The alcohol industry's global corporations have expanded alcoholic beverage markets in several developing or transitional countries in the past few decades , which has been associated with increasing alcohol problem rates.
Last year, Australians spent a grand total of $14.5 billion on alcohol they purchased from a liquor retailer (as opposed to a bar or other licensed venue). Almost three-quarters of this went to supermarket-affiliated retailers*, with hotel bottle shops and independent stores trailing well behind, the latest Alcohol Retail Currency report from Roy Morgan Research reveals.
The most striking development was the continued rise of ‘big box’ powerhouse Dan Murphy’s. The Woolworths’-owned chain accounted for nearly 30% of the total dollars—or $4.3 billion—spent by Australians on alcohol in 2016 (up from 25.4% in 2015). Woolworths’ two other alcohol retailers, Woolworths Liquor and BWS, saw their market share shrink, but Dan Murphy’s growth was robust enough to ensure that, between them, the three Woolworths’-owned retailers have a total dollar market share of just under 50% (49.2%/$7.1 billion).
A longer-term view reveals that Woolworths Liquor has been on the slide since at least 2012, while BWS’s recent decline comes after a period of relative stability. Dan Murphy’s has been up and down during this time, but has been increasing steadily since mid-2014.
Market share over time: supermarket liquor stores’ total alcohol retail share of dollars
Source: Roy Morgan Single Source (Australia), January 2012-December 2016. Base: Australians 18+ who purchased packaged alcohol last 7 days. * NB: Woolworths Group = Woolworths Liquor, BWS and Dan Murphy’s; Coles Group = Liquorland, First Choice and Vintage Cellars.
Written by Ana Sandoiu Monday 22 May 2017
When studies first suggested that alcohol, in moderation, may improve health, many of us were delighted at the news. But a new, in-depth review of these studies suggests that believing the health benefits of alcohol may be wishful thinking.
New research suggests that the studies previously indicating that alcohol is good for one's health may have been biased.
More than 100 prospective studies have shown an inverse correlation between moderate alcohol intake - defined as no more than one daily drink for women, and no more than two drinks per day for men - and the risk of heart attack, blood clots, stroke, and other adverse cardiovascular events.