Working with a group of Physical Therapists at Riverside PT, I showed them the importance of their hinges and how we need to get into a practice of utilizing them rather than relying completely on our spine (where there is no hinge).
Hinges work on a ball and socket and rotate more freely. An example is your hip socket.
When you go to use the computer, or pick up a heavy object, use the hip sockets to fold over and get closer. This implements the Alexander Technique in your everyday life.