gary's blog

Like to Sleep Around? Blame Your Genes (dopamine receptor gene)

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Like to Sleep Around? Blame Your Genes
By Stephanie Pappas, LiveScience Senior Writer
01 December 2010

Whether your roommate is Samantha Sleeps-Around or Paul the Prude, cut him or her some slack: People's predilections for promiscuity lie partially in their DNA, according to a new study.

A particular version of a dopamine receptor gene called DRD4 is linked to people's tendency toward both infidelity and uncommitted one-night stands, the researchers reported Nov. 30 in the online open-access journal PloS One.

How drug addictions, unhealthy food cravings are similar (article)

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Can't stop devouring junk food?
How drug addictions, unhealthy food cravings are similar

By: Victoria Stern 04/29/10 2:00 AM
Examiner Columnist

For some people, eating just one bite of a chocolate cupcake or one chip from a bag is nearly impossible. However, the more treats you consume each day, the more you'll need that sugar fix, according to new research.

Scientists think that intense junk food cravings and drug addiction are more similar than one might think.

The dark side of oxytocin: much more than just a love hormone

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The dark side of oxytocin: much more than just a love hormone
Discover Magazine blogs

There’s a chemical that can subtly shift your childhood memories of your own mother. In some people, it paints mum in a more saintly light, making them remember her as closer and more caring. In others, the chemical has a darker influence, casting mum as a less caring and more distant parent.

The Real Culprit in Overeating

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The Real Culprit in Overeating

By JONAH LEHRER
Thanksgiving has always been a day of delicious gluttony. According to the American Council on Exercise, the average adult consumes nearly 4,500 calories at the Thanksgiving table, which is about twice the recommended daily intake. Instead of listening to our stomachs, which were already full of mashed potatoes and turkey, we insisted on stuffing ourselves with the stuffing, too. And then there was the pie. It wouldn't have been Thanksgiving without a few slices of pumpkin pie.

Is something in the environment making everyone - animals and humans - gain weight?

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Animals are getting fatter, too
Is something in the environment making everyone -- animals and humans -- gain weight?

24th November 2010

Obesity levels have risen dramatically in research animals and others living close to humans, suggesting environmental factors are encouraging everyone to gain weight, according to new findings in the Proceedings of the Royal Society B.

Study on video game addiction

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Why is this study significant?
Playing video games caused a rush of extra dopamine in a portion of the reward circuitry (caudate). But ecstasy users had brains that had been so numbed to pleasure that they didn't react to the game.
Like other recent studies, this one confirms that non-drug stimuli can cause drug-like changes in the brain. Here we talk about yummy food reducing brain sensitivity: http://www.psychologytoday.com/blog/cupids-poisoned-arrow/201010/protect...

Parents Are Junkies

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Parents Are Junkies
If parenthood sucks, why do we love it? Because we're addicted.

By Shankar Vedantam
Posted Friday, Nov. 12, 2010

At the end of a long day, after a rotten commute filled with road rage and little accomplished at work, with chores piled up at home and the weekend nowhere in sight, my 4-year-old daughter clambered onto the sofa next to me, cuddled into my arms, and planted a moist, unasked-for kiss on my cheek.

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