Abstract: A mechanical bio-feed-back auto-traction bench, preferably for treatment of skeleton and soft body tissue lesions and comprising a support frame which carries a support bed (3) for a patient and in which the support bed is divided in the longitudinal direction of the bench into a head component (18) and a foot component (19) which are both rotatable upwards and downwards (.alpha., .beta.) independently of each other around a connection bar (15) provided between the two parts. The support frame comprises a supporting bottom frame (1) in which the bench frame (2) is rotatably mounted (.delta.). The bench frame (2) in turn carries the two component support bed (18, 19), and between the bench frame and the head component (18) and the foot component (19) respectively means are provided for rotating each component up or down (.alpha., .beta.) and possibly for side rotating the head component (18) in either direction.