Pulse wave sensor

A pulse wave sensor, comprising:

• a strain generating body including a plurality of slits each having an elongated shape and bending in a same direction;
• and
• a detector provided on the strain generating body,
• wherein the plurality of slits are varied in a distance from a center of gravity of the strain generating body to one-side ends of the slits and in a distance from the center of gravity of the strain generating body to the other-side ends of the slits,
• the detector is configured to detect either or both of a deformation of the strain generating body and a pressure applied to the strain generating body, and
• the pulse wave sensor is configured to detect a pulse wave based on a change in either or both of the deformation and the pressure detected by the detector.