A stretcher may stretch a lower body of a user laying down in a state in which the stretcher is arranged adjacent to, arranged on, or integrally attached to a bed. The stretcher includes an upper body movement restraint configured to prevent an upper body from being moved in the direction of stretching, a friction reducer configured to reduce a friction between the lower body and a lower body contact surface, and a tension generator configured to give a stretching force to the lower body when the upper body is held by the upper body restraint with the lower body arranged on the friction reducer. A user may be able remain flat on his or her back after using the stretcher. This may allow the users joints to rest and/or heal in a relaxed state.
