Missing chromosome might be obesity culprit


British researchers believe some children have an insatiable drive to eat because they lack a certain chunk of DNA.

Doctors at Cambridge University studied 300 children who had reached 220 pounds by age 10, looking for abnormalities in their DNA.

They found evidence that a small percentage were missing chromosome 16.

That chromosome is made up of nine genes, including one that the brain needs to control appetite.

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