The Spine as a Compression Spring:
Weight-bearing with the Alexander Technique

By altering the balance of the head on the spine not only is the overall length of the spine affected, but all the parts of the body are energized differently.  Tension (or sometimes a lack of it) in any of the parts affects the general springiness of the spine.

We Don't Know Squat:
Recovering an Active Opposition Between Legs and Torso

“Posture” is not a position to be achieved but a movement of our whole structure as it constantly balances and rebalances itself in response to activity.

The Habit of a Lifetime
Often the habits we maintain in our thinking are much more challenging to suspend than habits in our movement and posture.