If Someone Has Blue Eyes What Does That Mean?
- Pieter Maas
Whether you’re a brown-eyed girl or five-foot-two, eyes of blue, it’s what’s inside that counts. Seriously, we mean that. Your eye color has everything to do with your genetics, and if you’re blue eyed, you can probably figure out who’s a distant relative just by looking at them.
– It could be said that all eyes are the same color, That’s because the pigment that gives our eyes color, melanin, is naturally brown. In fact, originally, “we all had brown eyes,” a professor from the University of Copenhagen, Hans Rudolf Litchoff Eiberg, PhD, told Science Daily, Somewhere along the way, however, someone was born with a genetic mutation, Dr.
Eiberg explains. That genetic mutation limited the amount of melanin the person’s eyes could produce, with the visual effect being that the eyes appeared blue, rather than brown. Interesting, you might be thinking, but what do blue eyes genetics have to do with me? Well, the fact that all (so-called!) blue eyes descend from a single genetic mutation means that every single person on the planet with blue eyes descended from one common ancestor.
- In fact, a team of geneticists at the University of Copenhagen actually traced that mutation all the way back to a single Danish family.
- By linkage analysiswe fine-mapped the blue-eye color,” Dr.
- Eiberg’s team reported in the journal, Human Genetics,
- Through that analysis, it was discovered that an identifiable group of genes had been inherited together from one single parent—the scientific word for a group of genes inherited together from a single parent is ” haplotype,” The identified haplotype was common not just among 155 blue-eyed individuals from Denmark, but also five blue-eyed individuals from Turkey, and two blue-eyed individuals from Jordan.
In addition to haplotype mapping, Dr. Eiberg’s team conducted mitochondrial DNA analysis, which looks at patterns of genetic mutation to trace maternal ancestry back hundreds of thousands of years. “Variation in the color of the eyes from brown to green can all be explained by the amount of melanin in the iris, but blue-eyed individuals only have a small degree of variation in the amount of melanin in their eyes,” Dr.
Eiberg notes. “From this we can conclude that all blue-eyed individuals are linked to the same ancestorThey have all inherited the same switch at exactly the same spot in their DNA.” Brown-eyed individuals, by contrast, have considerable individual variation in the area of their DNA that controls melanin production.
So, are blue eyes a mutation? Yes. But is that a good thing or a bad thing? Neither, according to Dr. Eiberg. “It simply shows that nature is constantly shuffling the human genome, creating a genetic cocktail of human chromosomes and trying out different changes as it does so.” What we can presume, however, is that the color of our eyes is not the only thing trait that went along with the mutation that led to that color.
higher melanoma risk more likely to be competitive lower vitiligo risk
To find out more about your own ancestry, you can try genetic testing, But be aware that you may not always be prepared for what you find out.
What color eyes do men like?
While men were 1.4 times more likely than women to wish their partner had a different eye color, both genders favored blue eyes. Surprisingly, green, brown, and hazel were more preferred on a partner than gray eyes which respondents had previously considered the most attractive.
Are blue eye people smart?
Does eye color have an effect on intelligence? – Does eye color have an effect on intelligence? The above study found that 34% of participants considered people with brown eyes intelligent, kind, and trustworthy. In contrast, people with blue eyes were considered kind, sweet, and sexy, but only 7% of participants described blue-eyed people as intelligent. |
Do eyes tell the soul?
New study shows why eyes really are the windows into the soul 04-18-2017 We interpret a person’s emotions by analyzing the expression in their eyes – a process that began as a universal reaction to environmental stimuli and evolved to communicate our deepest emotions, according to new research by ‘s College of Human Ecology.
People in the study consistently associated narrowed eyes – which enhance visual discrimination by blocking light and sharpening focus – with emotions related to discrimination, such as disgust and suspicion, the study found. Participants linked open eyes – which expand field of vision – with emotions related to sensitivity, like fear and awe.
“When looking at the face, the eyes dominate emotional communication,” said Adam Anderson, professor of human development at Cornell and co-author of the study “The eyes are windows to the soul likely because they are first conduits for sight. Emotional expressive changes around the eye influence how we see, and in turn, this communicates to others how we think and feel.” According to the study, published in e, we interpret a person’s emotions by analyzing the expression in their eyes – a process that began as a universal reaction to environmental stimuli and evolved to communicate our deepest,
Study participants consistently associated narrowed eyes – which enhance our visual discrimination by blocking light and sharpening focus – with emotions related to discrimination, such as disgust and suspicion. In contrast, people linked open eyes – which expand our field of vision – with emotions related to sensitivity, like fear and awe.
“When looking at the face, the eyes dominate emotional communication,” Anderson said. “The eyes are windows to the soul likely because they are first conduits for sight. Emotional expressive changes around the eye influence how we see, and in turn, this communicates to others how we think and feel.”
This work builds on Anderson’s 2013 research which demonstrated that human facial expressions, such as raising one’s eyebrows, arose from universal, adaptive reactions to one’s environment and did not originally signal social communication, Cornell said. Both studies support Charles Darwin’s 19th-century theories on the evolution of emotion, which hypothesized that our expressions originated for sensory function rather than social communication. “What our work is beginning to unravel are the details of what Darwin theorized: why certain expressions look the way they do, how that helps the person perceive the world, and how others use those expressions to read our innermost emotions and intentions,” Anderson said. — By: Staff Writer Source:
: New study shows why eyes really are the windows into the soul
Do eyes reveal love?
Love Is In The Eyes: How Sight Contributes To Attraction We’ve all heard the term “Love is in the Air,” but can love really be in the eyes? Actually, science has proven it so! Certain chemicals (or endorphins) that produce the emotion of love can be emitted through emotions expressed in the eyes. There are physiological changes in the eyes that occur when love is expressed between two individuals.
Two people in love, love shown towards a family member, child, or even a pet all cause the same response: the pupil (the black part in the center of the eye) dilates. The size of the pupil can be an indication of emotional responses and messages. The autonomic nervous system (our fight or flight response), causes the pupil to have a quick dilating response.
The ANS is also in charge of heart rate and perspiration, and when a person is extremely interested in another person, the pupil has a dilating effect that is slightly less than the pupillary light reflex. This bounce in size is an automated response that gives scientists indication of mood or interest (or love) shown to another person.
Mounting scientific evidence also shows the benefit of looking into the eyes of your pet, especially dogs. Petting them causes you to become more healthy on all fronts, and a few minutes a day of lovingly looking at a dog releases serotonin, prolactin, and oxytocin which are “feel good” hormones. Overall health is improved and years can be added to your life when looking at something or someone with love.
Your eyes and autonomic nervous system play an intricate role in the expression of love. Prolonged eye contact has been thought to release phenylethylamine, a chemical responsible for feelings of attraction. It has also been thought to release oxytocin, the love chemical most closely associated with longer term bonding and commitment.
They say the “eyes are the windows to the soul,” but turns out they are also the windows to the heart. There have been many studies on how nonverbal cues from the eyes affect our behavior towards one another. When it comes to finding love, apparently how you communicate with your eyes can make all the difference.
Show your loved ones you care about them by encouraging to have an eye exam at least once a year! Early detection of vision problems are crucial to treating them effectively, and any sudden changes in vision or difficulty seeing is a warning that a comprehensive eye exam is needed.
Which type of eyes are beautiful?
The most popular coloured contacts – We’ve researched what colours people are most keen to try out using Google search data. We found that green is the most popular lens colour, with brown coming in a close second, despite it being one of the most common eye colours. Although blue and hazel are seen as the most attractive eye colours for men and women they are surprisingly the least popular.