- The Washington Times - Thursday, August 2, 2007


What makes you fat? Eating cheesy-poofs while watching “Seinfeld” reruns? Wolfing down a Wendy’s “Baconator,” a double cheeseburger with six strips of bacon that could feed everyone in Darfur for a week? How about when you get the urge to exercise you lie down until it goes away, as one CEO famously put it?

Yes, to all of the above. But these are all specific contributors to obesity driven by larger forces making us, well, larger. One of the most important of these, as new study in the New England Journal of Medicine shows, is that having fat social contacts makes you fatter. Obesity is contagious.

It’s unfortunate that while the response should be “Well, duh” it’s being treated as a revelation on par with the Pluto’s demotion from planet status. All this was known a decade ago: I wrote about it in my 1997 book “The Fat of the Land.”

I’ve written that overweight and obesity isn’t just the individual problem of lots of Americans (two-thirds, actually), but even aside from the direct costs imposed on all of us including higher Medicare and Medicaid expenditures and costlier private health insurance premiums, it’s both an individual and a national problem and should be treated as such.

The basic premise of obesity as contagion is simple: The more prevalent something becomes the more it becomes acceptable and the more of it you get. In a vicious cycle, more divorces begat more divorces, more unwed pregnancies begat more unwed pregnancies, more tattoos and piercings begat more self-mutilation (er, “body art”) and so on. Obesity isn’t just a physiological problem of too many calories in and too few out; it’s a long-term social problem.

In the study, researchers at Harvard and the University of California at San Diego followed a large social network of about 12,000 people over 32 years. The group included friends (whether they lived nearby or not), spouses, siblings and neighbors. The fatter these were, the fatter the index person became.

And lest you jump at the “fat gene” tomfoolery, it turned out the greatest influences were friends and not family. The study found a person’s chances of becoming obese went up 57 percent if a friend did so, though only 40 percent if a sibling did so. It went up 37 percent if a spouse became obese and, in the closest friendships, the risk almost tripled.

Mind you, nobody wants to be fat, notwithstanding the fat acceptance advocates who express “pride” in weighing 350 pounds or more and seem to think they deserve medals for downing Twinkies by the score. It’s just that people make an unconscious decision that they would rather engage in activities that make them fat (or not exercise), rather than conduct themselves in such a way as to stay or become thin.

“If you’re just a little bit heavy and everyone around you is quite heavier, you will feel good when you look in a mirror,” as David Katz physician and director of the Yale-Griffin Prevention Research Center, explained to the Associated Press. So what to do with this not-so-new knowledge?

Quarantining two-thirds of the population to protect the other third is not particularly compassionate nor practical. But sometimes simply increasing awareness with public service advertisements can be a powerful tool. While I’ve long criticized the “science” of so-called “secondhand smoke,” I’ll grant the PR campaign was succeeding in getting active smokers to quit long before the first indoor smoking ban passed.

Daddy might think twice about consuming a side of beef between two buns if he realizes his eating and consequential belt-covering paunch may condemn his children to the rapidly growing ranks of type 2 diabetes sufferers.

And we need to patiently explain to libertarians who cry “nanny state” and “food police” whenever the Centers for Disease Control or surgeon general mentions the obesity epidemic that calling attention to something and effecting a bacon ban are two different things. It has always been the job of the public health community to, well, protect the public health. That the greatest threats have gone from being infectious diseases to lifestyle diseases doesn’t change that.

Michael Fumento is a D.C.-based health, science and military writer.



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