WARNING APPARATUS AND DRIVING TENDENCY ANALYSIS DEVICE

A device includes a driver biological information acquisition unit 21 configured to acquire biological information on a driver, a driver arousal level estimation unit 22 configured to estimate an arousal level of the driver on the basis of the biological information, a vehicle behavior information acquisition unit 23 configured to acquire behavior information indicating a behavior of a vehicle, and a warning unit 30 configured to issue a warning based on arousal level information indicating the arousal level and the behavior information.