Lab rats in Chicago were deliberately hooked on junk to see how they'd behave with increasing doses of the stuff. Only the junk in question wasn't heroin, but food -- specifically a diet of sausage, pound cake, bacon, cheesecake and Ho Hos.
The rats ate and ate and ate, and when they'd grown obese, they continued eating. Even when they'd consumed thousands of calories in high-fat, zero-nutrition crap, the rats were insatiable. Eventually, the researchers began electrocuting the rats each time they ate the junk food, and each time the rats came back for more. The obese rats had to eat increasingly larger quantities in order to feel satisfied.
After a period of time, the researchers cut off their supply of junk food and offered them healthy alternatives instead -- the human equivalent of a salad option -- and the rats simply refused to eat.
This wasn't just wanton cruelty. The study aimed to find a link between overeating and drug addiction, to determine if the same neurological reward system is engaged while eating certain foods as when abusing narcotics.
"This is the most complete evidence to date that suggests obesity and drug addiction have common neuro-biological underpinnings," says one of the study's co-authors, Paul Johnson of the Scripps Research Institute in Jupiter, Fla.
This makes a great deal of sense to me. In my part-time job at a restaurant, I regularly see people consume thousands of calories in a single meal: mac and cheese, hush puppies, full racks of pork ribs slathered in sauce, as many as eight Diet Cokes. Then, to top it off, a hot fudge brownie sundae or slice of banana cream pie. They are slothful and tired-looking people, yet they continue to consume. It makes me think of the tongue-in-cheek blog This is Why You're Fat, which recently became a book as well.
The blog's tagline, "Where Dreams Become Heart Attacks," could be the marketing slogan for countless purveyors of food in this country and I'll wager people would still eat what they're selling. After all, everyone knows heroin is deadly, and yet, every single day people choose to try it. When will the American food industry be held accountable for what it's pushing in our nation's supermarkets and restaurants?
[Image: Inge Habex from Wikimedia Commons]
Junk-Food Junkie Rats in Chicago
