People with blue eyes have a higher chance of becoming alcoholics, a new study finds.
In fact, light-coloured eyes in general — whether green, grey or brown — are more strongly linked to alcoholism.
In comparison, people with dark brown eyes have a lower chance of becoming alcoholics.
The connection is likely down to a similar set of genes coding for both eye colour and a tendency towards alcoholism.
Dr Dawei Li, one of the study’s authors, said:
“This suggests an intriguing possibility — that eye color can be useful in the clinic for alcohol dependence diagnosis.”
The study was published in the American Journal of Medical Genetics Part B: Neuropsychiatric Genetics (Sulovari et al., 2015).
About the author
Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology.
He has been writing about scientific research on PsyBlog since 2004. He is also the author of the book “Making Habits, Breaking Habits” (Da Capo, 2003) and several ebooks:
- Accept Yourself: How to feel a profound sense of warmth and self-compassion
- The Anxiety Plan: 42 Strategies For Worry, Phobias, OCD and Panic
- Spark: 17 Steps That Will Boost Your Motivation For Anything
- Activate: How To Find Joy Again By Changing What You Do
Eyes image from Shutterstock