Blue Eyes and Alcoholism: Connection, Genetics Factors & More

By
Updated: May 4, 2021

blue eyes linked to alcoholism

In fact, it may be an even more prominent indicator of an increased risk of an alcohol use disorder than eye color. These findings are preliminary, however, and more research is necessary to understand the connection between blue eyes and rates of alcohol use disorders. In 1999, Morgan Worthy, a research psychologist at Georgia State University, proposed the hypothesis that light-eyed individuals might be more likely than dark-eyed individuals to develop alcohol dependence. Worthy mentioned this idea in passing, after a discussion of other physical properties correlated to “dark eyes” that hinted at relationships between eye color and human behavior or function. The prevalence of alcoholism was the highest in people with blue eyes — their rate was about 80 percent higher than that of people with other eye colors, according to the study.

Alcohol Use Disorder: Definitions, Causes, and Prevalence

blue eyes linked to alcoholism

If The Recovery Village is not the right fit for you or your loved one, we will help refer you to a facility that is. It is common to refer to “the gene for sickle cell disease” or “the gene for muscular dystrophy.” In reality, there are no genes for diseases. The “gene for sickle cell disease” is actually the adult beta hemoglobin gene, which we all have. Sickle cell disease patients inherited a particular form, or “allele” of the beta hemoglobin gene that causes their red blood cells to sickle under low oxygen tension.

Before anyone rushes to any judgments (or calls Dr. Phil to ask for a paternity test), rest assured this doesn’t suggest anything untoward. As a Nature article on the genetics of eye color points out, there’s more than meets the eye here (pun intended). “This suggests an intriguing possibility that eye color can be useful in the clinic for alcohol dependence diagnosis,” study co-author Arvis Sulovari of the University of Vermont said in a news release.

However, the complexity of genetic research, including factors such as assortative mating and shared environment effects, often challenges the validity of such findings. For instance, the heritability of alcohol use disorders, as shown in meta-analyses of twin and adoption studies, may be influenced by these factors. Despite these challenges, twin studies continue to provide valuable insights into the genetic underpinnings of alcoholism and other addiction disorders. The genetics of eye color are far more complex than previously thought, with recent research revealing the involvement of multiple genes.

  1. Neither Sulovari or lead author Dawei Li, professor of microbiology and molecular genetics at the University of Vermont, said they think there will be one genetic silver bullet to stop alcoholism.
  2. When you call our team, you will speak to a Recovery Advocate who will answer any questions and perform a pre-assessment to determine your eligibility for treatment.
  3. Certain genes, such as ADH1B and ALDH2, are predominantly involved in alcohol metabolism and are closely linked to alcoholism risk.
  4. You’ve supported HuffPost before, and we’ll be honest — we could use your help again.
  5. A potential connection between blue eyes and alcoholism might involve complex biological processes informed by the principles of genetics, molecular biology, and biochemistry.

Genetics, Risk, and Destiny

Another hurdle in genetics is the limitation of studying genes that are only active in specific tissues, such as the nervous system, which hinders the understanding of certain gene variants’ effects on diseases. Innovations like CRISPR technology are beginning to overcome these roadblocks, allowing genes to be activated in more accessible cells like skin or blood. This advancement, noted by ScienceDaily, could revolutionize diagnosis and understanding of genetic diseases. People with lighter eye colors appear to be more likely to develop alcoholism, according to a new study published in the American Journal of Medical Genetics. The call for a collaborative approach in treatment and prevention research underscores the importance of integrating genetic factors into a comprehensive care framework. This could enhance the effectiveness of interventions and ultimately lead to a reduction in alcoholism rates, improving individual and public health outcomes.

Genetic Factors in Alcoholism Treatment and Prevention Strategies

People with blue eyes may be more likely to become alcoholics, a new study suggests. The gene responsible for the amount of melanin in the iris of our eyes determines our eye color and is known as the OCA2 gene. The connection between this gene and the ones linked to AUD hasn’t been officially established.

Genetics of Alcohol Dependency

An essential aspect of biological mechanisms is their role in maintaining organisms far from equilibrium with their environments. This is achieved through a network of constraints constructed by the organism itself, directing energy flows to perform functional activities (Moreno and Mossio 2015). Magic Mushroom Side Effects The search for mechanisms to explain phenomena, such as a correlation between physical traits like eye color and behavioral patterns like alcohol consumption, has been a long-standing objective in biology. Furthermore, a family history of AUD may elevate genetic predispositions, with a notable risk for parent-child transmission. However, environmental factors also significantly contribute to the development of AUD when a family history of alcohol misuse is present. After reading these studies and looking at your own blue eyes in the mirror — or into the blue eyes of someone you care about — it can be easy to panic.

To start,  let’s take a brief look at what gives rise to eye color in the first place. It comes down to our DNA — the sequence of nucleotide molecules that work as templates for building our body’s proteins. Each stretch of three nucleotides corresponds to amino acids — the molecular building blocks of proteins. Other specialized mechanisms in our cells string these amino acids together according to the DNA template with each “gene” (a sequence of DNA) corresponding to a single protein.

Statistically, individuals with blue eyes constitute approximately 8% of the global population. Understanding the genetics of eye color is not only a matter of curiosity but has practical implications in the fields of genetics, ophthalmology, and even evolutionary studies. For instance, the inheritance pattern of eye color can help explain dominant and recessive traits and how they are passed down through generations. The results may indicate that greater sensitivity to alcohol in dark-eyed individuals prevents them from drinking the large quantities of alcohol needed for development of physical dependence.