In those who have more, their alleles are longer and they are more prone to thrill-seeking.”
She said it’s not in her personality to take risks. It’s important for new places to live. “If he has been unfaithful in the past, he is likely to do it in the future.”
“Certain people are vulnerable to affairs, but in the end, it’s about personal choice,” said Jenn Berman, a psychotherapist and host of “The Love and Sex Show” on Cosmo Radio. (An allele is part of the gene’s DNA sequence responsible for different traits such as eye color or curly hair.)
Upbringing, experience and culture may actually wield more influence than the risk-taking gene, according to Susan Quilliam, a noted British psychologist and author of the updated “Joy of Sex.”
“By the time she meets him, unless he is very young, his track record will prove whether he has acted on his infidelity gene or not,” said Quilliam. “But the people with the DRD4 gene need more stimuli to feel satiated. Sometimes, going to the other side of the mountain means that something eats you. “There’s got to be something going on in your head to cheat.”
“I mean if you meet a guy at a party and he’s making out with three other girls, that’s a hint,” she said. “It’s the ultimate form of honesty, really,” he said.
He then tested their DNA by oral rinsing with a special mouthwash — a buccal wash — and genotyped the DRD4.
And can’t risk-taking be a good thing?
“Not everyone with the gene is promiscuous and not everyone who is promiscuous will have that gene.”. Two were encounters with guys she had been friends with and another was a fling that transformed into a longer relationship.
But not everyone is convinced a roving eye is rooted in DNA.
“I’d never done anything like that before,” said Emma, who did not want to reveal her last name. Others ask, ‘When is the plane going back up?'”
Some of the implications of this study might be “huge,” and not just in the bedroom. “Every time a genetic study comes out, responsible scientists also stress that we have choice — nature and nurture,” she said.
The gene evolved about 30,000 to 50,000 years ago when humans were moving out of Africa.
But Garcia said the gene for risk also might have an evolutionary advantage, beyond producing more children.
Armed with that kind of data, John Coleman said he might be inclined to test his fiance and himself as well.
She wanted to try something different, so she slept with three men in one month. “And it depends on how well-developed their impulse control is.”
“I find cheating appalling,” said Coleman. “It was something so new to me.”
“Sometimes that overlaps with creativity, with entrepreneurship and wanting to push the boundaries,” she said. There is a cost and a benefit.”
“It’s rewarding and makes us excited and gives us pleasure,” said Garcia. “The big question is what happens in drug rehab if you have a long allele and others don’t? They might have different treatments.”
Still, the study could have some interesting implications.
In what is being called a first of its kind study, researchers at Binghamton University, State University of New York (SUNY) have discovered that about half of all people have a gene that makes them more vulnerable to promiscuity and cheating.
“It turns out everyone has got the gene,” said Garcia, who is a doctoral fellow in the laboratory of evolutionary anthropology and health at SUNY Binghamton. “If you’re disrespecting me, something tells me you’re not going to respect me enough to be faithful.”
DRD4 is the “thrill-seeking” gene, also responsible for alcohol and gambling addictions.
In the study, Garcia instructed 181 student volunteers at SUNY to take an anonymous survey on their previous sexual behavior, asking them questions like how many sex partners they had and if they had ever been unfaithful.
Those with at least one 7-repeat allele reported a higher rate of promiscuity — that is admitting to a “one-night stand.” The same group had a 50 percent increase in instances of sexual cheating.
John Coleman, a 22-year-old from Syracuse, N.Y., has been engaged for the last two years and cannot fathom having sex with anyone other than his girlfriend.
The desire to cheat or sleep around seems to originate in the brain’s pleasure and reward center, where the “rush” of dopamine motivates those who are vulnerable, the researchers say.
“Having some individuals who have wanderlust and want to see what’s on the other side mountain. The gene can influence the brain’s chemistry and subsequently, an individual’s behavior.
When the brain is stimulated — drinking alcohol, jumping from planes, having sex — it releases dopamine, the pleasure response hormone.
And now that she is in a committed relationship, Emma is certain she won’t be unfaithful.
ABC’s On Campus reporters Sierra Jiminez of Syracuse University and Meg Wagner of University of Florida contributed to this story.
The study also strongly suggests that sex drive and thrill can function independently of love.
“It’s inheritable, too,” he said. Some of say ‘wow,’ that was a rush after jumping out of a plane. “In relationships that can be exciting and fulfilling and help the whole couple move into new areas.”
Maureen Finn, a 19-year-old television, film and radio major at Syracuse University, agrees.
Those with a certain variant of the dopamine receptor D4 polymorphism — or DRD4 gene — “were more likely to have a history of uncommitted sex, including one-night stands and acts of infidelity,” according to lead investigator Justin Garcia.
“It’s like getting tested for STDs,” he said. “Just as height varies, the amount of information in the gene varies. “If your parents have it, you have it.”
“We are learning more and more about genes implicated in behaviors,” she said. But it’s also risk-taking. Defying college stereotypes, Emma’s never touched alcohol and has only smoked marijuana once.
That might be the case with Emma, a 20-year-old student from University of Southern Florida, who just broken up with her boyfriend after a two-year monogamous relationship.
So should a woman have her boyfriend tested before accepting his marriage proposal?
It turns out Coleman is right.
His team discovered that there is a variation in the thrill-seeking gene and those with much longer alleles are more prone to, well, getting prone