An information processing method used in an information processing device, the information processing method includes acquiring, using a processor of the information processing device, biological information of a user, accepting, using the processor, input by the user of message information indicating a message to be transmitted to another information processing device that is different from the information processing device used by the user, determining, using the processor, based on the biological information whether the user is in a bad mood, and when it is determined that the user is in a bad mood, stopping, using the processor, transmission of the accepted message information, and storing, using the processor, the message information, in a memory, that has not been transmitted.