What evidence suggests a genetic component to obesity? What is inherited?
What will be an ideal response?
* Only 5 percent of all cases of obesity result from physical causes such as endocrine dysfunction or brain damage.
* The weight of identical twins did not vary depending on whether they were reared apart or together.
* Overweight adolescents have a 70 percent chance of becoming overweight or obese adults; the risk rises to 80 percent if one or both parents is overweight or obese.
* The risk of extreme obesity (defined as a BMI of 40 or above) is significantly higher in families of extremely obese individuals.
* The amount of fat cells seem to be inherited.
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