How many cookies can one little girl eat before something strange begins to happen?

Once there was a very happy little girl who loved

cookies. She loved them so much that she wouldn't

eat anything but cookies-cookies for breakfast,

cookies for lunch, cookies for dinner. (Need we

even mention dessert?) Her parents tried

everything they could think of to get her to eat

the right foods, but all she would eat were

cookies! Then one day, she began to change.