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Growing Evidence For The Lasting Impact Of Alcohol On The Brain

Excessive alcohol use accounts for 4% of the , and particularly is becoming an increasing health issue. A new published in Cortex highlights the significant changes in brain function and structure that can be caused by alcohol misuse in young people.

Functional signs of brain damage from alcohol misuse in young people mainly include deficits in visual learning and memory as well as . These functions are controlled by the hippocampus and frontal structures of , which are not fully mature until around 25 years of age. Structural signs of alcohol misuse in young people include shrinking of and significant changes to white matter tracts.

Age of first use may be considered to trigger alcohol misuse. According to the researchers however, changing the legal drinking age is not the answer. In Australia the legal drinking age is 18, three years earlier than in the US. Despite the difference in legal drinking age, the age of first use (and associated problems) is the same between the two countries.

Instead, the authors stressed the need for early intervention, by identifying markers and thresholds of risky drinking behaviour at an early stage, while individuals are in vulnerable stages of brain development.


This article is “Pathways to Alcohol-Induced Brain Impairment in Young People: A Review” by Daniel F. Hermens, Jim Lagopoulos, Juliette Tobias-Webb, Tamara De Regt, Glenys Dore, Lisa Juckes, Noeline Latt and (http://dx.doi.org/10.1016/j.cortex.2012.05.021) and appears in Cortex Volume 49, Issue 1, January 2013, Pages 3, published by Elsevier.