An exemplary information-processing system includes: a first measuring unit that measures body activity amount of a user a second measuring unit that measures body activity amount of the user, the second measuring unit being different from the first measuring unit a calculation unit that executes a predetermined calculation based on at least the body activity amount measured by the first measuring unit and the body activity amount measured by the second measuring unit and an output unit that outputs information based on a result of the calculation executed by the calculation unit.