Disclosed is an ultrasound diagnostic apparatus including: a power storage that stores electric power and that releases the stored power； a first hardware processor that receives power and supplies the received power to a gel heater, in which the gel heater heats gel by the power； and a second hardware processor that receives either power supplied from an external power source or the power released from the power storage and supplies the received power to the first hardware processor. When the first hardware processor receives the power released from the power storage, the first hardware processor shuts off or reduces power supply to the gel heater.
