Fatigue degree determination device, and fatigue degree determination method

A fatigue degree determination method comprising:

• a first biological heart rate acquisition step of acquiring a first biological heart rate while a user is awake and at rest, based on a biological heart rate measured from the user;
• a second biological heart rate acquisition step of acquiring a second biological heart rate while the user is sleeping, based on the biological heart rate measured from the user, and
• a fatigue degree determination step of determining a fatigue degree of the user, based on information read out from a storage medium, the first biological heart rate and the second biological heart rate, the storage medium storing the information in which a degree of change of one biological heart rate relative to the other biological heart rate of a biological heart rate while a person is awake and at rest and a biological heart rate while the person is sleeping and a fatigue degree are associated with each other.

A non-transitory computer-readable storage medium, which stores a fatigue degree determination program configured to enable a computer to execute:

• a first biological heart rate acquisition step of acquiring a first biological heart rate while a user is awake and at rest, based on a biological heart rate measured from the user;
• a second biological heart rate acquisition step of acquiring a second biological heart rate while the user is sleeping, based on the biological heart rate measured from the user, and
• a fatigue degree determination step of determining a fatigue degree of the user, based on information read out from a storage medium, the first biological heart rate and the second biological heart rate, the storage medium storing the information in which a degree of change of one biological heart rate relative to the other biological heart rate of a biological heart rate while a person is awake and at rest and a biological heart rate while the person is sleeping and a fatigue degree are associated with each other.