Causes
By Mayo Clinic staffAlthough there are some genetic and hormonal causes of childhood obesity, most of the time it's caused by kids eating too much and exercising too little.
Far less common than lifestyle issues are genetic diseases and hormonal disorders that can make a child more likely to be obese. These diseases, such as Prader-Willi syndrome and Cushing's syndrome, affect a very small number of children. Most of the time, eating and exercise habits play a larger role.
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