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How Your Blood Sugar Could Be Wrecking Your Marriage

Apr 21 2014, 10:28pm CDT | by

We’ve all known people who should have to wear a flashing red DANGER! sign if they miss lunch.  Though even without the warning, we instinctively know to steer clear if someone is running on empty....

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13 weeks ago

How Your Blood Sugar Could Be Wrecking Your Marriage

Apr 21 2014, 10:28pm CDT | by

We’ve all known people who should have to wear a flashing red DANGER! sign if they miss lunch.  Though even without the warning, we instinctively know to steer clear if someone is running on empty. A grumbling stomach means a drop in blood sugar, and through excruciating experience we know that means trouble. But could the blood sugar-anger connection lurk behind more relationship conflicts than we realize?

A new study probed that question with a research methodology as painfully funny as it was effective.  Researchers rounded up 107 married couples for a 21-day couples’ boot-camp to draw a direct line between blood glucose (aka circulating blood sugar) and aggression.

First they asked the couples to complete a relationship questionnaire that evaluated their level of satisfaction with their marriages, which allowed the research team to control for variables like how rocky the marriage was to begin with. They also measured all of the participants’ blood glucose levels to set a benchmark, and continued to measure the levels throughout the 21-day study.

The researchers predicted that drops in blood sugar would consistently correlate with heightened aggression between the spouses. Aggression was defined in two ways: aggressive impulse and aggressive behavior.  The distinction was meant to identify aggression in thought versus action, because aggression rarely happens in a vacuum—there’s usually a thought impulse that precedes it, even if that impulse doesn’t happen immediately before the action but compounds over time.

To test aggressive impulse, the researchers gave participants a voodoo doll and 51 pins, with instructions to place as many pins in the doll every night as needed to show how angry they were with their spouse. A light conflict day might get just a couple pokes, while a “cover the kid’s eyes and ears” day might warrant the full 51 to the head.

To test aggressive behavior, the researchers had the spouses wear headphones while they competed against each other in 25-part tasks. After each task, the winner decided how loudly and for how long to blast the loser with a noise through the headphones.

At the end of the 21 days, with riddled voodoo dolls and ringing ears aplenty, the hypothesis was proven out.  The lower the level of blood glucose, the more pins the spouses poked, and the higher the intensity and longer the duration they blasted their partners through their headphones.

The study provides a couple of worthwhile takeaways. First, quoting Brad Bushman, professor of psychology and communication at Ohio State University and lead study author, “Before you have a difficult conversation with your spouse, make sure you’re not hungry.”  Simple to say, harder to do.

Second, and the reason why that’s such good advice, is that our brains are energy hogs . “Even though the brain is only two percent of our body weight, it consumes about 20 percent of our calories. It is a very demanding organ when it comes to energy,” added Bushman. When the brain is short on energy, it’s also short on self-control, and the door is opened for aggressive impulses and behavior to take center stage. And if the study results are a true indication, we’re red lining our self-control more often than we realize.

I’d love to see a follow-up study that attempts to track these results against the blood sugar rollercoaster associated with fast-food laden diets. I have a suspicion that glucose-related aggression isn’t solely about how much or little food we eat, but also the sorts of food we eat. Just a hunch, but it stands to reason that shoveling in foods that cause our blood sugar levels to spike and crash day after day may also trigger spousal (and other) explosions. A little food for thought while you’re sitting in the drive-thru.

The study was published in the Proceedings of the National Academy of Science s .

You can find David DiSalvo on Twitter @neuronarrative  and at his website, The Daily Brain . His latest book is Brain Changer: How Harnessing Your Brain’s Power To Adapt Can Change Your Life .

 
Update
10

7 weeks ago

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Jun 9 2014 7:54am CDT | Source: Business Times Malaysia

KUALA LUMPUR: About RM47 million of contributions in the Teachers Provident Fund (KWSG) still remain unclaimed, the Dewan Rakyat was told toda ...
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Update
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7 weeks ago

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Jun 9 2014 3:39am CDT | Source: Business Times Malaysia

KUALA LUMPUR: AN emergency motion to debate the losses incurred by Malaysia Airlines last year, amounting to RM1.2 billion was rejected by the Dewan Rakyat toda ...
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Update
7

7 weeks ago

MH370 Tragedy: Hisham: RM27.6 mil spent on 1st phase of SAR

Jun 9 2014 2:11am CDT | Source: Business Times Malaysia

KUALA LUMPUR: Malaysia spent some RM27.6 million in its first phase of the search operations for missing Malaysia Airline flight MH370, said Acting Transport Minister, Datuk ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
6

7 weeks ago

9.1m litres of diesel seized in a month

Jun 8 2014 1:11am CDT | Source: Business Times Malaysia

PUTRAJAYA: The Domestic Trade, Cooperatives, and Consumerism ministry has seized some 9.1 million litres of diesel and property worth RM58 million since mounting ‘Operasi Diesel Selatan’ in the southern s ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
5

7 weeks ago

Girl, 9, awarded RM2.78m compensation for medical negligence

Jun 6 2014 4:56am CDT | Source: Business Times Malaysia

KUALA LUMPUR: A nine-year-old girl who suffered brain damage during her birth at a government hospital was awarded over RM2.78 million in c ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
4

7 weeks ago

Malaysia's total trade in April up 12pc

Jun 5 2014 11:52pm CDT | Source: Business Times Malaysia

KUALA LUMPUR: Malaysia's total trade in April 2014 rose by 12 per cent from a year ago to RM123.86 billion due to growing trading activities, International Trade and Industr ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
3

7 weeks ago

Works Ministry to spend RM20m for upgrading works at 50 accident black spots

Jun 4 2014 11:35pm CDT | Source: Business Times Malaysia

JOHOR BARU: The Works Ministry will implement upgrading works at 50 accident prone locations in the country that have been identified this year involving an allocation of RM2 ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
2

7 weeks ago

Najib launches loan scheme for Ramadan traders

Jun 4 2014 10:24pm CDT | Source: Business Times Malaysia

PUTRAJAYA: Prime Minister Datuk Seri Najib Razak today launches RM45 million Ramadan Bazaar Sch ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 
Update
1

7 weeks ago

Residents bring up objection against Kidex to Suhakam

Jun 4 2014 4:49am CDT | Source: Business Times Malaysia

PETALING JAYA: A group of 20 Petaling Jaya residents held a meeting with the Human Rights Commission of Malaysia (Suhakam) over their objection against the proposed RM2.2 billion Kinrara Damansara Skyway (Kidex) tod ...
Source: Business Times Malaysia   Full article at: Business Times Malaysia
 

 

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