A power control system comprises: a healthcare device including a blood pressure meter and other devices and measuring human body measurement data (metabolic data)； and a power command device equipped with a healthcare processing unit for obtaining the measurement data. The power command device stores the measurement data obtained from the healthcare device in an internal memory thereof, displays the measurement data on a display screen, and also transmits the measurement data to home electrical appliances connected thereto. In the side of the home electrical appliances, the measurement data, which is transmitted from the power command device in response to a user's operation, is also displayed on a display device. Further, the measurement data is displayed on a display unit in the side of the home electrical appliances so as to be usable when setting operating conditions of the home electrical appliances.
