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June 06 2011

18:26

To Keep to Your Diet, Pretend You’re Constantly Breaking It

milkshake
Is this milkshake better than yours?

Congratulating yourself on that calorie-conscious salad might just make you feel hungrier, scientists are now finding—better to close your eyes, take a bite, and pretend you’re eating ice cream.

We’ve already heard in recent years that eating imaginary M&Ms or cheese cubes can give you some of the satiety of the real thing: In a 2010 paper, researchers found that contrary to popular belief, imagining eating such foods in vivid detail actually made subjects eat fewer M&Ms, cheese chunks, and so on. Now, scientists have found that if you believe a shake is low in calories, you’ll feel less satisfied than people who think the shake was an indulgence, even when you’re both drinking the same shake. What gives?

The team (from Yale’s Rudd Center for Food Policy and Obesity) told subjects that a 380-calorie shake had either an indulgent 620 calories or a prudent 140 calories. Then they checked to see what effect that had on subjects’ blood levels of ghrelin, a hormone that triggers hunger and is high before meals and low after. They found that ghrelin didn’t subside afterwards in people who thought they ...


April 20 2011

17:59

I Like Your Ring Finger. Let’s Mate!

When it comes to sexual attraction, it turns out that men might better be concerned with the length of their fourth (or ring) fingers than the length of anything else. Researchers have discovered that women tend to be more attracted to men whose ring fingers are longer than their index fingers.

We’ve known for a while that the length ratio between the second and fourth fingers of a man may indicate how much testosterone he was exposed to in the womb, with longer ring fingers indicating more testosterone exposure. And many researchers have taken this finding to new levels, including a study from last December that revealed that the risk of prostate cancer drops by a third in men with longer index fingers.

In the present study, “the aim was to understand what make a man attractive,” and whether these characteristics “were in part conditioned by the foetal environment,” University of Geneva, Switzerland, researcher Camille Ferdenzi told COSMOS. Men with higher testosterone tend to have deeper voices, more symmetrical faces, and a distinct body odor. And so with this in mind, Ferdenzi had 80 university women between 18 and ...


April 19 2011

18:46

Gertie the Hen “Sex-Changes” into Bertie the Rooster

Normally, chicken-keepers don’t sweat it when their hens go through short egg-laying dry-spells. But when an egg-less hen grows a wattle in a matter of weeks and starts crowing at the rising sun, it may be time to worry. That’s what went through a British couple’s minds this past year, when their pet hen Gertie began looking and acting like a rooster.

It all started last November, when Jim and Jeanette Howard of Huntingdon, England, noticed that Gertie stopped laying eggs. “Then a few days later I heard her try to crow,” Jeanette Howard told the BBC. “She wasn’t very good at it at first, but she’s progressed nicely.” Gertie then got heavier and developed a wattle under her chin in the next few weeks. And as her feathers grew back during her molt, they were a darker brown than before. Sporting a scarlet cockscomb and a rooster-like strut, Gertie is now outwardly indistinguishable from a cockerel.So how did this happen? There are still many unanswered questions about Gertie’s apparent sex-change, but according to Poultry ...


April 30 2010

20:52

Turn a Man Into Mush With a Nasal Spray of Pure Oxytocin

Who ever thought that couples could bond over nasal spray? But new research shows that a nasal spray containing the "love hormone" oxytocin helped make regular guys more empathetic and less gruff. Oxytocin is the hormone that strengthens the bond between nursing moms and their babies, and it's also involved in pair bonding, love, and sex. The spray was tested on a group of 48 healthy males--half received a spritz of the nose spray at the start of the experiment and the other half received a placebo. The researchers then showed their test subjects emotion-inducing photos like a bawling child, a girl hugging her cat, and a grieving man. Finally, they asked the guys to express how they felt. The placebo group men reacted normally to the soppy pictures; which is to say they were either mildly uncomfortable or stoic. Whereas the group that had used the nasal spray were markedly more empathetic. The Register reports: "The males under test achieved levels [of emotion] which would normally only be expected in women," says a statement from Bonn University, indicating that they had cooed or even blubbed at the sight of the affecting images. The study's findings, published in The Journal of Neuroscience, suggest one ...


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