Cumming Up With The Evidence
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Cumming Up With The Evidence
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Big Tits at Work (TV Series)
Cumming Up With The Evidence
(2017)
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Alle Titel TV-Folgen Prominente Unternehmen Stichwörter Erweiterte Suche
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Big Tits at Work (TV Series)
Cumming Up With The Evidence
(2017)
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Published September 2, 2011 1:01AM (EDT)
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Love And Sex
Sex
This week I started having flashbacks to the hookup hysteria of a few years back. It started with a Daily Mail piece headlined, "Sex: Why it makes women fall in love -- but just makes men want MORE!" Other outlets picked up on the story and the women's blog the Frisky bleakly concluded, "After sex, men are feeling satiated, perhaps thinking of sleep or pizza, or the next time we'll do them and we are stuck wondering whether or not we love him."
The original report, if you can even call it that, claimed to be about a recent study out of Rutgers University, but much of the content -- especially about how orgasms cause a flood of oxytocin, commonly referred to as the "cuddle drug," that makes women indiscriminately fall in love -- was attributed to a U.K. doctor who had nada to do with the actual research. This bait-and-switch threw me for a loop, but I eventually tracked down the researcher who inspired these grand, sweeping statements. Barry Komisaruk, a professor of psychology at Rutgers, says he found no such thing.
It's tempting to shrug off misreporting by the infamous Daily Mail, but it's far from the first publication to further the oxytocin love story. This popularly accepted wisdom has also been used to back up moral arguments against premarital sex, sometimes by influential officials -- like Eric Keroack, a Department of Health and Human Services appointee under President George W. Bush, who believed casual sex depleted women's stores of oxytocin thereby ruining their ability to romantically bond. I talked to Komisaruk about what we really know about women, orgasms and love.
What did you actually find with regard to orgasms and oxytocin in women?
During orgasm in women, I see activation of the dopamine target region, which is the nucleus accumbens, and activation of the oxytocin-producing region of the hypothalamus. What that means is that during orgasm, we're not measuring dopamine or oxytocin directly , but we're measuring the activity of brain regions that respond to dopamine and the brain regions that produce and release oxytocin.
How does that compare to orgasm in men?
You can't exactly compare it, because it's apples and oranges. We're just beginning to study sexual response and orgasm in men. The only other people who recently have studied orgasm in men is a group in Holland and they use a PET scan, a very different method from the functional MRI we used. They claim that there are some differences in orgasm between men and women, but overall I would say, based on their research, that the similarities are much greater than the differences in orgasm between men and women.
That's not at all the message communicated in the media. Usually, you see reporting on how orgasms cause women to be flooded with far more oxytocin --
It's true that women have a peak of oxytocin at the time of orgasm, whereas men have a more gradual increase, but that's based on blood level measurements. I have to say something very important that people don't recognize, particularly in the mass media: Oxytocin is both a hormone and a neurotransmitter. That means it's released into the blood as a hormone from the pituitary gland at the same time it's released into the brain as a neurotransmitter. The oxytocin released in the brain could be having different properties and different effects than the oxytocin that's released into the bloodstream.
When it's released into the bloodstream it mainly produces contractions of the uterus (which may serve to pull semen into the uterus and helps push out the fetus during childbirth) and the mammary glands (which squeezes out milk into the baby's mouth). Very little oxytocin gets into the brain from the blood, and any effect of oxytocin on behavior is due to its release in the brain as a neurotransmitter. We don't really know what effect it has in humans.
It's so often referred to as "the cuddle drug," the "love hormone" --
The evidence of stimulating pair bonding and cuddling, that's based on injection of oxytocin directly into the brain in rodents. There's no evidence like that in humans. I keep checking the literature on that because I'm very interested in it, but there's actually no evidence of oxytocin as a love hormone in humans. You have to be very careful about any romantic role attributed to humans based on research on non-humans.
Just to be utterly clear: Is there any evidence to back up the idea that oxytocin leads women to experience greater post-coital feelings of love than men?
There's really no evidence of it. Somehow it caught the imagination of the public, but it's based on rodents. It's possible, I'm not saying it's impossible, but there's no experimental evidence to support it -- in humans.
Not only are these conclusions a huge leap, but I've seen them used to further political arguments -- for example, against casual sex, the idea being that it's more harmful to women because they become more emotionally attached.
So any time that we see oxytocin broadly linked to love, that is an unmerited simplification?
What one can say is that during orgasm oxytocin is liberated into the blood -- that's been shown. There's also some evidence that oxytocin is released into the blood during hugging ... but, again, that's oxytocin released into the blood. That could be a response to the loving behavior rather than a cause. It's a correlative of it, it could just be a side effect, because oxytocin in the blood doesn't have any significant behavioral effect.
Now, it's possible, and I would even say likely, that orgasm and maybe hugging cause the release of oxytocin in various places in the brain. But there's no evidence that such oxytocin that's released into the brain has any effect on behavior in humans.
So even having evidence of oxytocin released in the brain, we don't know that it would result in feelings of love.
That's right. It's extremely difficult to show that -- you can inject the oxytocin into the brain in animals but you can't do that in humans. It's very likely that something like that happens but there's no evidence of it and you can't jump to conclusions based on something that seems logical, because we're always fooled and surprised by mother nature. There's an expression, "It may be logical, but it's not biological" -- or at least it hasn't been shown biologically in this case.
Right, it seems to make intuitive sense but there isn't evidence to back it up.
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HLN explores the mysterious disappearance of Haleigh Cummings
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Five-year-old girl disappears from her Florida home
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Father of Haleigh Cummings and his girlfriend question by police
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Published: 13:05 BST, 1 November 2019 | Updated: 20:54 BST, 1 November 2019
A new HLN documentary has uncovered never before seen evidence in the decade-long search for a five-year-old girl who vanished from her Florida home in the middle of the night when her father's 17-year-old girlfriend was babysitting her.
Haleigh Cummings was last seen at her trailer home in Satsuma, south of Jacksonville, on February 9, 2009.
The little girl's father, Ronald Cummings, had left his 17-year-old girlfriend, Misty Croslin, in charge of caring for Haleigh and her four-year-old brother while he was working a night shift.
When he returned home at about 3am, Croslin told him that she had just woken up to find Haleigh missing from her bed and that a cinder block was propping open the back door.
The Putnam County Sheriff's Office found no evidence of forced entry into the family's double-wide trailer.
Haleigh Cummings was last seen at her trailer home in Satsuma, south of Jacksonville, on February 9, 2009. Haleigh's mystery disappearance is now the subject of a new HLN docuseries called Real Life Nightmare to air on Saturday night
No trace of Haleigh has ever been found despite a wide-spread search involving hundreds of volunteers and an investigation involving multiple law enforcement agencies.
Investigators continue to believe Croslin is key in Haleigh's disappearance. They say her story has changed multiple times over the past decade but Croslin has never been charged in the case.
Haleigh's mystery disappearance is now the subject of a new HLN docuseries called Real Life Nightmare to air on Saturday night.
Among the evidence shown in the documentary is never-before-seen video of Cummings speaking to a tearful Croslin in a police interview room after they were both interviewed.
'You didn't wake up,' Cummings could be heard saying to Croslin after an investigator let him into the interview room when she was being questioned.
She sobbed as she said: 'I would never let nothing happen to her if I knew something. I wouldn't let someone just take her.'
The little girl's father, Ronald Cummings, (left with his daughter) had left his 17-year-old girlfriend, Misty Croslin, in charge of caring for Haleigh while he was working a night shift. Investigators continue to believe Croslin (on left hugging Cummings) is key in Haleigh's disappearance
Among the evidence shown in the documentary is never-before-seen video of Cummings speaking to a tearful Croslin in a police interview room after they were both interviewed. He asks her how she didn't wake up when Haleigh vanished
'You didn't get out of bed,' Cummings said before asking Croslin: 'You sure you didn't unlock the door?'
Croslin responded: 'I didn't even hear anything.'
Other evidence included in the documentary is footage of Croslin walking through the crime scene just days after Haleigh vanished.
In the video, Croslin can be seen crying after finding the shirt that she said the little girl was wearing when she went to bed the night she vanished.
'When these indicators start popping up that her story to us,
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