A breathing exerciser (100) includes: a guide unit (201) for guiding an exercise pattern of breathing to a user; a biological information detecting unit (30) for detecting biological information on the user; a biological information detection control unit (202) for controlling detection of the biological information at timing associated with an exercise period during which the exercise pattern is guided; a characteristic value calculating unit (203) for calculating a characteristic value that reflects an exercise index, based on the biological information detected according to the control of the biological information detection control unit, the exercise index being a target of breathing exercise; an effect index calculating unit (204) for calculating an effect index based on at least two characteristic values, the effect index representing an effect of the breathing exercise; and an informing unit (206) for informing the effect index to the user.
RESPIRATION TRAINING MACHINE ENABLING GRASP OF EFFECT