People who work at heights use safety harnesses to assist lessen the risk of harm if they fall. When the fall is stopped, a full-body harness distributes the force of the fall across the wearer's body. The shoulders, torso, and upper thighs are all wrapped in these fall-protection harnesses. On the top back there is a single D-ring or web loop for connecting a self-retracting lifeline or shock-absorbing lanyard that links to a secure anchor point on a building or structure. The D-ring position relieves pressure on the wearer's body and maintains the user upright in the harness during and after a fall.