Amy used to be rather overweight as a child because she had an insatiable appetite. She was later able to lose all the weight and is currently able to control herself as an adult. However, she can lose control very easily such as in " The Prisoner of Benda " where she reverted back to becoming fat and put Turanga Leela 's body in bad shape when they switched bodies. Amy is a young Mars University student who divides her time between her studies as an engineering student and her internship at Planet Express - a post she got because she happens to be the same blood type as Professor Hubert J. In the episode " That Darn Katz!