A state control apparatus including: an acquiring unit configured to acquire a state index indicating a state of target feeling based on biological information corresponding to the target feeling which is feeling of a target to be guided, the biological information being detected from a guide target whose state of feeling is to be guided; and a state control unit configured to determine a feeling guiding medium to be used for guiding the state of the target feeling based on the acquired state index and pattern information which is associated with the feeling guiding medium for guiding the state of the target feeling and which indicates a pattern of temporal change of the state index so that the state of the target feeling becomes a predetermined set state, and control the state of the target feeling of the guide target by performing processing relating to the determined feeling guiding medium. The biological information includes information indicating a detection result of an enzyme.