PROBLEM TO BE SOLVED : To appropriately provide service related to a disease according to a user.SOLUTION : This provision device is an information processing device for predicting a predicted disease predicted to develop in a user, based on user' s environmental information or biological information, of diseases associated with the user, and has an acquisition unit and a provision unit. The acquisition unit acquires the environmental information about user' s environment. The provision unit provides service related to the predicted disease which is the disease predicted to develop in the user, based on the environmental information acquired by the acquisition unit, of the diseases associated with the user.SELECTED DRAWING : Figure 3