It is an object of the invention to provide a biological sensor capable of detecting a biological information with a high sensitivity. It is an object of the invention to provide a support system for carrying out a support in such a manner that a work can be efficiently performed based on the biological information obtained by the biological sensor.
There are provided acceleration detecting means (300) constituted to detect an acceleration including a vibration of a body surface of a person to be measured, processing means for extracting at least two of an information about a heartbeat, an information about a body motion and an information about a breath from an information output from the acceleration detecting means (300), and deciding means (500) for deciding a condition of the measured person to be a living body from an output of the processing means.