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Handedness and drinking behaviour.

¹School of Economics and Geary Institute, University College Dublin 4, Ireland. kevin.denny@ucd.ie

British Journal of Health Psychology

|April 15, 2011

Summary

Left-handed individuals consume alcohol more frequently than right-handed individuals, primarily because they are less likely to abstain from drinking. This study found no link between left-handedness and excessive or risky alcohol consumption.

Area of Science:

Neuroscience
Psychology
Public Health

Background:

Previous research on handedness and alcohol consumption used small, often non-representative samples.
Hypotheses suggest alcoholism may stem from atypical brain lateralization or social stress in a right-handed world.

Purpose of the Study:

To investigate the association between handedness and alcohol consumption frequency.
To utilize a large, population-based dataset for robust analysis.

Main Methods:

Analysis of a large, multi-country dataset (N=27,428) of adults aged 50+ from 12 European nations.
Logistic regression modeling to assess self-reported alcohol consumption frequency.
Inclusion of various potential confounders to refine the analysis.

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Main Results:

Left-handed individuals report drinking alcohol more frequently compared to right-handed individuals.
This increased frequency is attributed to left-handers being less likely to be rare or non-drinkers.

Conclusions:

An association exists between left-handedness and the frequency of alcohol consumption.
No evidence supports a link between left-handedness and excessive or risky alcohol consumption patterns.