According to a measuring method or a control method of life activity, a life object is illuminated with an electromagnetic wave including a wavelength in a designated waveband, and a characteristic in a local area of the life object is detected, or a life activity thereof is controlled. The “designated waveband” is defined based on phenomena used for detecting or controlling an activity state of the life object or a change of the state. This “local area” is an area constituted by one or more cells.
