A storage unit stores in advance a value that indicates a change of a value pertaining to a body in relation to the type or amount of action, predicts a value that indicates a change of the value pertaining to the body for each action of a user by using the value that indicates a change as stored in the storage unit (step S161 to step S171), and presents the value that indicates the predicted change (step S174). A value that indicates a change in a case when a prescribed action is performed and a value that indicates a change in a case when the prescribed action is not performed are predicted. The storage unit stores in advance a value that indicates a change of the value pertaining the body in relation to the type or amount of action by the user. The storage unit stores in advance a value that indicates a change of the value pertaining to the body in relation to the types or amounts of action of a plurality of people. It is possible to predict a change of the value pertaining to the body for each action of the user.
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