Many Americans refuse to believe their bathroom scales, thinking they are thinner than they actually are. A Harris Interactive/HealthDay survey asked participants to provide their height and weight, and pollsters calculated their body mass index (BMI), a measurement used to indicate obesity.

Those participating were then asked which weight category they fell into. According to HealthDay, 30 percent who were actually in the overweight category thought their weight was normal, while 70 percent who were obese believed they were simply overweight. And 39 percent of the morbidly obese classified themselves as being merely overweight. Obesity, experts say, may be becoming the new norm.

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