From Julie, Age 14 - 11/20/07 - IP#: 71.107.13.xxx Click here to reply Ht. 5'6", Start: 170 lb, Today: 166 lb, Goal: 130 lb - Ok well I must be dumb because I don't know what cardio is... could any of you help???
Reply from Emily, Age 13 - 11/20/07 - IP#: 4.239.255.xxx cardio is what gets ur heart rate up like running, swimming, jogging, jumprope...things like that
