Because we live on earth, we are subject to the constant downward force of gravity. Gravity interacts with our skeleton, our postural habits, and our movement in ways that can cause compression of our spine. With time, our spine actually becomes shorter. This lesson is the first series in the Posture Matters course, the beginning of our practice to find length in the spine and feel the potential for getting taller. This is a back lying lesson. Please have a folded towel or blanket for underneath your head, if it is needed to help bring your neck to a more neutral placement while lying on the back.